Overlay Welding Method

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Overlay Welding Method

Abstract: Abstract Object To provide an overlay welding method that can suppress a reduction in a dilution ratio of a repair welded portion formed by repair welding of a weld layer made of a cobalt-based alloy. Solving Means A method of performing overlay welding on a member including a steel material and an overlay welded portion made of a cobalt-based alloy and formed on the steel material, the method including generating an arc between a welding torch and the overlay welded portion, forming a melt pool by melting a surface of the overlay welded portion with the arc, and simultaneously inserting a similar-composition welding material having a composition similar to the steel material and a cobalt-based alloy welding material made of a cobalt-based alloy into the melt pool.

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Notices, Deadlines & Correspondence

Patent Information

Application #

Filing Date

29 June 2023

Publication Number

09/2024

Publication Type

INA

Invention Field

MECHANICAL ENGINEERING

Status

Email

Parent Application

Applicants

MITSUBISHI HEAVY INDUSTRIES, LTD.

2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 100-8332, Japan

Inventors

1. MASUYAMA, Daichi

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 100-8332, Japan

2. KAMO, Kazuhiko

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 100-8332, Japan

3. ISHIHARA, Mikihisa

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 100-8332, Japan

4. KUMAGAI, Toshihide

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 100-8332, Japan

5. SAKAKIBARA, Noriyuki

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 100-8332, Japan

Specification

Description:AS ATTACHED , Claims:AS ATTACHED

Documents

Application Documents

#	Name	Date
1	202314043785-STATEMENT OF UNDERTAKING (FORM 3) [29-06-2023(online)].pdf	2023-06-29
2	202314043785-REQUEST FOR EXAMINATION (FORM-18) [29-06-2023(online)].pdf	2023-06-29
3	202314043785-POWER OF AUTHORITY [29-06-2023(online)].pdf	2023-06-29
4	202314043785-FORM 18 [29-06-2023(online)].pdf	2023-06-29
5	202314043785-FORM 1 [29-06-2023(online)].pdf	2023-06-29
6	202314043785-DRAWINGS [29-06-2023(online)].pdf	2023-06-29
7	202314043785-DECLARATION OF INVENTORSHIP (FORM 5) [29-06-2023(online)].pdf	2023-06-29
8	202314043785-COMPLETE SPECIFICATION [29-06-2023(online)].pdf	2023-06-29
9	202314043785-Correspondence-Letter [03-07-2023(online)].pdf	2023-07-03
10	202314043785-Proof of Right [04-07-2023(online)].pdf	2023-07-04
11	202314043785-FORM 3 [16-11-2023(online)].pdf	2023-11-16