DESC:TECHNICAL FIELD
[0001] The present disclosure relates to a laser welding machine, more particularly, this invention relates to a machine and method for manufacturing metal pipes from sheet metal through laser technology, wherein the metal pipes may be used in the jewelry and other industries for further creating various articles.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[0003] The jewelry manufacturing sector, particularly in the crafting of gold, silver, and platinum pieces, predominantly relies on Gas Tungsten Arc Welding, also known as TIG welding. This method is integral to producing pipes used in various jewelry items, a crucial step in fabricating numerous high-value goods.
[0004] Despite the widespread proficiency in its use within the industry, TIG welding encompasses several substantial drawbacks that adversely affect production efficiency and economic viability. The process duration for TIG welding is notably prolonged. Such extensive time demands significantly hamper production throughput and efficiency. Additionally, the TIG welding process incurs the loss of precious metals including gold, silver, and platinum. Given the considerable value of these materials, even minimal losses can lead to substantial financial impacts over time, undermining the cost-effectiveness and sustainability of the manufacturing workflow.
[0005] The necessity for different machines for each pipe size further limits operational flexibility and escalates the capital investment needed for a full-scale production setup. This specialization in equipment also leads to increased operational expenses and complexity. A particular challenge arises with the inability of TIG welding machines to handle thin metal strips. The rollers fail to support thin materials, and the welding mechanism cannot adjust to such fine melting points, limiting the variety of product sizes and designs that can be achieved. This restriction hinders innovation and reduces product diversity.
[0006] The demand for additional precious metals beyond the main material increases the cost and resource requirements of the TIG welding process, detracting from its efficiency and sustainability. Operational challenges, including the user-unfriendliness of TIG welding and the high skill level necessary for its effective execution, further strain manufacturing operations, affecting productivity and quality.
[0007] The extensive use of argon gas in the TIG welding process poses significant safety risks due to argon's potential to displace oxygen. Accumulation of argon can lead to a spectrum of health effects, ranging from mild symptoms like dizziness and nausea to severe consequences such as loss of consciousness and, in extreme cases, death. These safety concerns necessitate strict control measures and monitoring, adding to operational complexity and costs.
[0008] Lastly, the expense associated with argon gas represents a significant ongoing cost, further affecting the economic viability of the TIG welding process and adding to the operational expenses of jewelry pipe manufacturing.
[0009] There is a need to overcome the above drawbacks, shortcomings, and limitations associated with the existing (jewelry) pipe manufacturing process, by providing a simple, safe, and efficient solution for metal pipe manufacturing that has no loss of materials and allows fast production of pipes for jewelry and various others applications with minimum manpower.

OBJECTS OF THE PRESENT DISCLOSURE
[0010] Some of the objects of the present disclosure, which at least one embodiment herein satisfy are as listed herein below.
[0011] A general object of the present disclosure is to overcome the drawbacks, shortcomings, and limitations associated with the existing jewelry pipe manufacturing process.
[0012] An object of the present disclosure is to provide a method or machine for jewelry pipe manufacturing that significantly reduces the processing time and material loss compared to the existing solution.
[0013] An object of the present disclosure is to minimize or eliminate the loss of precious metals such as gold, silver, and platinum during the pipe manufacturing process.
[0014] An object of the present disclosure is to provide a solution that allows for the production of pipes of varying sizes without the need for multiple specialized machines, thereby enhancing operational flexibility and reducing capital expenditure.
[0015] An object of the present disclosure is to enable the manufacturing of thin metal strips for jewelry purposes, which current TIG welding machines cannot effectively support due to their design limitations.
[0016] An object of the present disclosure is to decrease the amount of additional precious metals required for the manufacturing process, aiming for a more resource-efficient production method.
[0017] An object of the present disclosure is to offer a more user-friendly alternative to TIG welding that can be operated with less specialized training, improving accessibility, and reducing labor costs.
[0018] An object of the present disclosure is to significantly reduce or eliminate the reliance on argon gas, addressing the safety risks associated with its use and potentially lowering operational costs by avoiding this expensive consumable.
[0019] An object of the present disclosure is to overall enhance the safety, efficiency, and cost-effectiveness of the jewelry pipe manufacturing process, leading to a more sustainable and profitable operation.

SUMMARY
[0020] The present disclosure relates to a machine and method for manufacturing metal pipes from sheet metal through laser technology, wherein the metal pipes may be used for the jewelry industry for further creating jewelry and various others articles.
[0021] According to an aspect, a machine for manufacturing pipe from a sheet is disclosed. The machine comprises a die configured to mold a sheet of a predefined material into a rolled sheet of a predefined shape, an extraction mechanism configured to grip and pull the rolled sheet from the die, and a welding device configured to weld non-connecting sides of the rolled sheet to form a pipe of the predefined shape. The die comprises a housing having a channel extending longitudinally between a rear end and a front end of the housing, where a rear section of the channel has a substantially circular cross-section with a notch protruding at least partially from an inner wall of the rear section and an internal volume of the rear section reducing while moving in a direction towards the front end of the housing, and a front section of the channel has a predefined cross-section concurrent to the predefined shape. The die is adapted to move lateral sides of the sheet towards each other while the sheet moves through the rear section and further mold the sheet into the rolled sheet while the sheet moves through the front section, to form and extrude the rolled sheet having the predefined shape.
[0022] In an aspect, the welding device is a laser welding device that is configured to join the non-connecting sides of the rolled sheet while extruding from the die to form the pipe having the predefined shape.
[0023] In an aspect, the notch has an inverted V-shaped profile or tapered shape of a predefined length protruding from top of the inner wall of the channel towards a central axis of the channel.
[0024] In an aspect, the predefined cross-section or the predefined shape is selected from a group comprising circular, oval, triangular, square, rectangular, and polygonal.
[0025] In an aspect, a rear end of the channel has the substantially circular cross-section of a first radius with the notch to define an inlet of the die, where the first radius, and a width and length of the notch are selected based on a width and thickness of the sheet. Further, a front end of the front section of the channel defines the outlet of the die, where a size and the predefined cross-section of the front section is selected based on a size and dimension of the rolled sheet to be extruded or the pipe to be formed.
[0026] In an aspect, the inverted V-shaped or tapered notch protrudes towards the central axis of the channel, such that an apex of the notch remains in line with an outer circumference of the front section of the channel.
[0027] In an aspect, the extraction mechanism comprises a pair of rollers or bearings having a predefined gap therebetween based on a size of the extruded rolled sheet or the pipe. The rotation of the rollers or the bearings in predefined directions causes automated pulling or movement of the extruded rolled sheet or the pipe.
[0028] In an aspect, the machine is configured over one or more holders that are configured to move any or a combination of the die, the welding device, and/or the extraction mechanism along one or more axes.
[0029] In an aspect, the machine comprises a micrometer device configured at the outlet of the die, wherein the micrometer device is secured over a micrometer holding plate.
[0030] In an aspect, a rear portion of the housing has a cubical-shaped outer profile enclosing the rear section of the channel, and a front portion of the housing has a substantially conical-shaped outer profile enclosing the front section of the channel.
[0031] Various objects, features, aspects, and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent features.
[0032] Within the scope of this application, it is expressly envisaged that the various aspects, embodiments, examples and alternatives set out in the preceding paragraphs, in the claims and/or in the following description and drawings, and particularly the individual features thereof, may be taken independently or in any combination. Features described in connection with one embodiment are applicable to all embodiments, unless such features are incompatible
BRIEF DESCRIPTION OF DRAWINGS
[0033] The accompanying drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present invention and, together with the description.
[0034] FIG. 1A and 1B illustrate exemplary views of the proposed machine for manufacturing metal pipe from sheet metal, in accordance with an embodiment of the present disclosure;
[0035] FIG. 2 illustrates an exemplary view depicting the conversion of the sheet into pipe by the proposed machine, in accordance with an embodiment of the present disclosure;
[0036] FIG. 3A to 3E illustrate exemplary views of an embodiment of the die used in FIGs. 1A to 2, in accordance with an embodiment of the present disclosure; and
[0037] FIG. 4 illustrates exemplary steps involved in a method for manufacturing the metal pipe from sheet metal, in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0038] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0039] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.
[0040] Embodiments of the present disclosure elaborate upon a machine and method for manufacturing metal pipes from sheet metal through laser technology, wherein the metal pipes may be used in the jewelry industry for further creating various jewelry articles.
[0041] The present disclosure overcomes the drawbacks, shortcomings, and limitations associated with the existing jewelry pipe manufacturing process, by providing a simple, efficient, and cost-effective solution in the form of a machine for jewelry pipe manufacturing, which has no loss of materials and allows fast production of pipes for jewelry application with minimum manpower.
[0042] Referring to FIGs. 1A to 2, a machine 100 for manufacturing pipe 204 from a sheet 202 is disclosed. The machine 100 may include a die 1 configured to receive and mold a sheet 202 of metal and the like into a rolled sheet of a predefined shape. The detailed construction and operation of the die 1 have been described later in conjunction with FIGs. 3A to 3E. The machine 100 may further include an extraction mechanism 14 (also referred to as gripping mechanism 14 or pulling mechanism 14 or wheel assembly, herein) that may be configured to grip and pull the rolled sheet extruded away from the die 1. Further, the machine 100 may include a welding device 13 configured to weld non-connecting sides of the rolled sheet to form a seamless pipe 204 of the predefined shape. In an embodiment, the predefined shape of the final manufactured pipe 204 or the predefined shape of the rolled sheet extruded by the die 1 may be selected from a group comprising circular, oval, triangular, square, rectangular, and polygonal.
[0043] Accordingly, the machine 100 allows putting a metal sheet 202 in the die 1 that may further mold the sheet 202 into a rolled sheet having the non-connecting sides very close to each other. Further, when the rolled sheet is pulled out of the die 1 by the extraction mechanism 14, the welding device 13 may provide a laser beam that may continuously fall on the non-connecting sides of the rolled sheet and simultaneously weld and convert the rolled sheet into a seamless pipe 204. At the same time, ambient air may be passed on the welded spot to cool down the welded area, thereby converting the sheet 202 into a final seamless pipe 204 having any shape selected from circular, oval, triangular, square, rectangular, polygonal, and the like. The welding device 13 and the extraction mechanism 14 may be positioned at the outlet 306 of the die 1 such that the welding device 13 may weld the rolled sheet into a seamless pipe 204 while the rolled sheet is pulled by the extraction mechanism 14.
[0044] In an embodiment, a pressurized air device (not shown) may be employed to supply pressurized air to the welding spot of the pipe 204 to quickly cool down the welded area. However, ambient air may also be allowed to flow to the welding spot of the pipe 204 to cool down the welded area. The pressurized air device may include a pump (which may be connected to a reservoir) to supply pressurized air.
[0045] In an embodiment, the welding device 13 may be a laser welding device that may be configured to supply a laser beam on the non-connecting sides of the rolled sheet while extruding from the die 1 to weld the non-connecting sides and form a seamless pipe 204 as shown in FIG. 2. However, in other embodiments, the welding device 13 may also be any other type of welding device known in the art such as Metal Inert Gas (MIG) welding, Tungsten Inert Gas (TIG) welding, Shielded Metal Arc welding, flux-cored arc welding, and electron beam welding, and all such embodiments are well within the scope of this invention.
[0046] In an embodiment, the extraction mechanism 14 may include a pair of rollers or bearings (designated as 4 in FIGs. 1A and 1B) having a predefined gap therebetween based on the size of the extruded rolled sheet or the pipe 204. Accordingly, the rotation of the rollers or the bearings in predefined directions may cause automated pulling or movement of the extruded rolled sheet or the pipe 204 from the die 1. In another embodiment (not shown), the extraction mechanism 14 may include a conveyor powered by an electric motor that may be configured at the outlet 306 of the die 1. The conveyor may receive the extruded rolled sheet and move the rolled sheet away from the die 1, while the welding device 13 welds the rolled sheet into a seamless pipe 204. However, in other embodiments, any other type of extraction or pulling mechanism known in the art may also be employed without any limitation and all such embodiments are well within the scope of this invention.
[0047] Further, in an embodiment, the machine 100 may include a micrometer device configured at the outlet 306 of the die 1 which may facilitate users in precise measurement of the dimension of the final pipe 204, ensuring accuracy in the manufacturing process.
[0048] In an embodiment, the components of the machine 100 may be configured over one or more holders that may be configured to move any or a combination of the die 1, the welding device 13, the extraction mechanism 14, and/or the micrometer device along one or more axes in the machine 100. This may allow precise positioning and securing of these components at desired positions with ease. For instance, as shown in FIGs. 1A and 1B, the die 1 may be secured on a die holder 4 that may be further secured on a die stand 3. Further, the bearings 4 of the extraction mechanism 14 may be mounted on a bearing mounting plate 5 that may be secured on a z-axis holder 6. Furthermore, the welding device 13 may be secured on a welding device holder 10 that may be further configured on a holding long block 8. In addition, a sliding plate 9 may be configured with the welding device 13 that may enable sliding of the welding device 13 with respect to the die 1 and the extraction mechanism 14. Furthermore, the micrometer device may be configured over a micrometer device holding plate 12 such that the micrometer device remains at the outlet 306 of the die 1.
[0049] In an embodiment, the above-mentioned holders, or the components of the machine 100 may be configured over an XYZ sliding plate 11 that may enable movement of any or a combination of the die 1, the welding device 13, the extraction mechanism 14, and/or the micrometer device along one or more axes (x-axis, y-axis, and z-axis).
[0050] Referring to FIGs. 3A to 3E, the die 1 employed in the machine 100 may include a housing 302 defining the outer shape of the die 1. The die 1 may include a hollow channel extending longitudinally between a first end (rear end) and a second end (front end) of the housing 302, where the rear end of the channel may correspond to an inlet 304 of the die 1 and the front end of the channel may correspond to an outlet 306 of the die 1. In an embodiment, a rear section 308 of the channel may have a substantially circular cross-section with a notch N protruding at least partially from an inner wall of the rear section 308 and an internal volume of the rear section 308 reducing while moving in a direction towards the front end of the housing 302. Further, a front section 310 of the channel may have a predefined cross-section concurrent to the shape of the pipe 204 to be formed. In an embodiment, the predefined shape of the front section 310 of the channel or the pipe 204 may be selected from a group comprising circular, oval, triangular, square, rectangular, and polygonal, but not limited to the like. As depicted, the inner volume of the rear section 308 of the channel may reduce while moving towards the front end of the housing 302 such that the size of the notch N may reduce and finally diminish at a point before the front section 310 of the channel.
[0051] For instance, in a non-limiting example as shown here, the predefined shape of the front section 310 of the channel may be circular or oval, which may allow molding the sheet 202 into a circular or oval-shaped pipe 204. It is to be appreciated that the circular or oval-shaped first section of the die 1 or the final pipe 204 thereof mentioned above are only exemplary, and these can be changed to any other shape without any limitation whatsoever, and all such implementations are well within the scope of the present application
[0052] Initially, a front end of the sheet 202 may be inserted within the channel via the rear end or the inlet 304 and allowed to move towards the front end or the outlet 306 of the die 1 through the channel. Accordingly, the inner profile and notch N of the rear section 308 of the channel may be adapted to facilitate the movement of lateral sides of the sheet 202 towards each other while the sheet 202 moves through the rear section 308. As the notch N diminishes at the end of the rear section 308, there remains a minimal gap between the non-connecting sides of the rolled sheet while entering the front section 310. Further, the front section 310 of the channel may be adapted to mold the corresponding sheet 202 into a rolled sheet (having a minimal gap between the non-connecting sides) as per the inner profile of the front section 310 while the same sheet 202 moves through the front section 310, Finally, the die 1 may extrude the rolled sheet having the predefined shape via the outlet 306. Later, the welding device 13 may weld the non-connecting ends of the extruded rolled sheet to form a seamless pipe 204.
[0053] In an embodiment, the notch N may have an inverted V-shaped profile or tapered shape of a predefined length protruding from the top of the inner wall of the rear section 308 towards a central axis of the channel. A proximal end of the notch N may form a base that may be attached to the inner wall of the channel and an apex or distal end of the notch N remains towards the central axis of the channel. In an embodiment, the inverted V-shaped or tapered notch N may protrude towards the central axis of the rear section 308, such that the apex of the notch N remains in line with the outer circumference of the front section 310 of the channel. Further, the inner volume of the rear section 308 of the channel may reduce while moving towards the front end such that the size of the notch N may reduce and finally diminish at a point before the front section 310.
[0054] In some embodiments, an apex of the V-shaped notch N may be at a predefined first distance from the central axis of the channel. Further in other embodiments (not shown), an apex of the V-shaped notch N may be in line with the central axis of the channel. Further, in some other embodiments (not shown), an apex of the V-shaped notch N may also extend at least partially beyond the central axis of the channel.
[0055] In an embodiment, a rear portion of the housing 302 may have a cubical-shaped outer profile enclosing the rear section 308 of the channel, and a front portion of the housing 302 may have a substantially conical-shaped outer profile enclosing the front section 310 of the channel. However, in other embodiments, the rear and front portions of the housing 302 may also have any other shape without any limitations.
[0056] In an embodiment, the rear end of the channel (rear section 308) may have the substantially circular cross-section of a first radius with the notch N to define the inlet 304 of the die 1. The first radius and a width and length of the notch N may be selected based on the width and thickness of the sheet 202. Further, a front end of the front section 310 of the channel may define the outlet 306 of the die 1, where a size and the predefined cross-section of the front section 310 may be selected based on the size and dimension of the rolled sheet to be extruded or the pipe 204 to be formed. In an exemplary embodiment, a radius of the inlet 304 (or rear section 308) may be 12 mm and a radius of the outlet 306 (or front section 310) may be 5 mm, but is not limited to the like.
[0057] In an embodiment, the V-shaped notch N may protrude in a downward direction from the top-most point of the inner wall of the rear section 308 such that the apex of the V-shaped notch N remains in line with the outer circumference of the front section 310, which may cause the extruded cylindrical roll to have the non-connecting sides on top of the rolled sheet. Accordingly, the welding device 13 may be arranged at a predefined second distance from the outlet 306 and at a predefined height above the outlet 306 of the die 1 to enable welding of the non-connecting sides of the extruded rolled sheet to form the final seamless pipe 204.
[0058] However, in other embodiments (not shown), the V-shaped notch N may protrude from a side (left, right, or other angle) or bottom of the inner wall of the rear section 308 such that the apex of the V-shaped notch N remains in line with the outer circumference of the front section 310 of the channel, which may cause the extruded cylindrical roll to have the non-connecting sides on the side or bottom of the rolled sheet. Accordingly, the welding device 13 may also be arranged at the outlet 306 of the die 1 such that the welding device 13 may provide a laser beam or welding arc on the non-connecting sides of the extruded rolled sheet to form the final seamless pipe 204.
[0059] Referring to FIG. 4, the method 400 for manufacturing metal pipes from a metal sheet involves a detailed process starting with placing a thin metal sheet in the die that shapes the sheet into a preliminary pipe form (rolled sheet). This rolled sheet is then received by or attached to the gripping mechanism designed for pulling the rolled sheet through subsequent steps. Upon initiation of the welding device, a laser, accompanied by a targeted airflow, may be directed at the non-connecting ends of the rolled sheet to form a seamless pipe. This precise application of heat and air melts the metal, and with the assistance of the bearings of the gripping mechanism seamlessly guides the rolled sheet or the pipe during the welding process. As a result, a seamless pipe is formed, with the advantage that its length can be customized according to need, simply by controlling the pulling process. The operation concludes once the machine is stopped, marking the end of the cycle, and resulting in a seamless pipe ready for use.
[0060] As illustrated, the method 400 may include step 402 of inserting the sheet in the die via the inlet of the die. Further, at step 404, the die may allow the sheet to take the shape of the rolled sheet or pipe as the sheet moves across the channel of the die, and then the pipe may be received by or attached to the gripping mechanism for pulling the extruded rolled sheet from the die. Further, at step 406, the welding device may be started to weld the non-connected sides of the rolled sheet pulled from the die and air may be supplied at the welding spot where it melts the material of the rolled sheet to form a seamless pipe. At step 408, the seamless pipe may then be pulled to a desired length using the gripping mechanism, and finally, at step 410 the machine may be stopped to complete the cycle.
[0061] Thus, this invention overcomes the drawbacks, shortcomings, and limitations associated with the existing jewelry pipe manufacturing process, by providing a simple, efficient, and cost-effective solution in the form of the proposed machine for jewelry pipe manufacturing, which has no loss of materials and allows fast production of pipes for jewelry application with minimum manpower.
[0062] It is to be appreciated by a person skilled in the art that while various embodiments of the present disclosure elaborate upon the implementation of this invention in jewelry manufacturing, however, the machine has wider applications where the machine may be used for manufacturing pipes for other non-jewelry applications as well, and all such embodiments are well within the scope of the present disclosure, without any limitations.
[0063] If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[0064] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[0065] Moreover, in interpreting the specification, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms “comprises” and “comprising” should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refer to at least one of something selected from the group consisting of A, B, C ….and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc.
[0066] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are comprised to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE INVENTION
Below are the advantages of the present invention:
• Process comparatively takes less time (e.g. 1kg gold on average takes 30 minutes)
• There is no loss of any kind of metals in the present method.
• Only one machine is required to make any size of pipe. (Just have to change dies for each size)
• Thin metal strips can be welded in this machine.
• Need less metals for the processing of pipe.
• Instead of TIG, a laser is been used which is operations-friendly.
• Instead of argon gas, natural pressured air is used which is environment friendly.
• There is no extra cost for the use of natural air.

Additional Advantages:
• Low cost.
• Easy to use.
• The production is 90% faster than the existing technology.
• Clean welding.
• No hazardous gas is required.
• No loss of precious metals.
• Perfect solution for the medical syringe industry.
• For any industry quality seamless pipe manufacturing process
• In any industry, production will be 90% faster than the existing method also the machine occupies less space i.e. the production requires 70-80% less space.
• This technology is going to be profitable in many industries like jewelry, medical, industrial with the key function of making final pipe from any metal strip. ,CLAIMS:I Claim:
1. A machine (100) for manufacturing pipe (204) from a sheet (202), the machine (100) comprising:
a die (1) configured to mold a sheet (202) of a predefined material into a rolled sheet of a predefined shape;
an extraction mechanism (14) configured to grip and pull the rolled sheet from the die (1); and
a welding device (13) configured to weld non-connecting sides of the rolled sheet to form a pipe (204) of the predefined shape,
characterized in that the die (1) comprises a housing (302) having a channel extending longitudinally between a rear end and a front end of the housing (302), wherein a rear section (308) of the channel has a substantially circular cross-section with a notch (N) protruding at least partially from an inner wall of the rear section (308) and an internal volume of the rear section (308) reducing while moving in a direction towards the front end of the housing (302), and a front section (310) of the channel has a predefined cross-section concurrent to the predefined shape,
wherein the die (1) is adapted to move lateral sides of the sheet (202) towards each other while the sheet (202) moves through the rear section (308) and further mold the sheet (202) into the rolled sheet while the sheet (202) moves through the front section (310), to form and extrude the rolled sheet having the predefined shape.
2. The machine (100) as claimed in claim 1, wherein the welding device (13) is a laser welding device (13) that is configured to join the non-connecting sides of the rolled sheet while extruding from the die (1) to form the pipe (204) having the predefined shape.
3. The machine (100) as claimed in claim 1, wherein the notch (N) has an inverted V-shaped profile or tapered shape of a predefined length protruding from top of the inner wall of the channel towards a central axis of the channel.
4. The machine (100) as claimed in claim 1, wherein the predefined cross-section or the predefined shape is selected from a group comprising circular, oval, triangular, square, rectangular, and polygonal.
5. The machine (100) as claimed in claim 1, wherein a rear end of the channel has the substantially circular cross-section of a first radius with the notch (N) to define an inlet (304) of the die (1), wherein the first radius, and a width and length of the notch (N) are selected based on a width and thickness of the sheet (202), and
wherein a front end of the front section (310) of the channel defines the outlet (306) of the die (1), wherein a size and the predefined cross-section of the front section (310) is selected based on a size and dimension of the rolled sheet to be extruded or the pipe (204) to be formed.
6. The machine (100) as claimed in claim 3, wherein the inverted V-shaped or tapered notch (N) protrudes towards the central axis of the channel, such that an apex of the notch (N) remains in line with an outer circumference of the front section (310) of the channel.
7. The machine (100) as claimed in claim 1, wherein the extraction mechanism (14) comprises a pair of rollers or bearings having a predefined gap there between based on a size of the extruded rolled sheet or the pipe (204), wherein rotation of the rollers or the bearings in predefined directions causes automated pulling or movement of the extruded rolled sheet or the pipe (204).
8. The machine (100) as claimed in claim 1, wherein the machine (100) is configured over one or more holders that are configured to move any or a combination of the die (1), the welding device (13), and/or the extraction mechanism (14) along one or more axes.
9. The machine (100) as claimed in claim 1, wherein the machine (100) comprises a micrometer device configured at the outlet (306) of the die (1), wherein the micrometer device is secured over a micrometer holding plate.
10. The machine (100) as claimed in claim 1, wherein a rear portion of the housing (302) has a cubical-shaped outer profile enclosing the rear section (308) of the channel, and a front portion of the housing (302) has a substantially conical-shaped outer profile enclosing the front section (310) of the channel.