scispace - formally typeset
Search or ask a question
Topic

Arc welding

About: Arc welding is a research topic. Over the lifetime, 25393 publications have been published within this topic receiving 168182 citations.


Papers
More filters
Patent
Eiji Ashida1, Masayasu Nihei1, Hiroshi Wachi1, Akira Sato1, Satoshi Kokura1 
22 Jan 1979
TL;DR: In this article, a method and apparatus for automatically controlling arc welding is presented, in which pieces of optical information provided by at least two bands of different wavelengths of light radiated from a weld area being arc-welded under predetermined welding conditions are alternately picked up by an optical device to extract various weld factors representing the actual status of the weld area from these pieces of light information, and the extracted weld factors are compared with the desired values of the welding factors representing a desired status representing the desired status.
Abstract: Disclosed is a method and apparatus for automatically controlling arc welding, wherein pieces of optical information provided by at least two bands of different wavelengths of light radiated from a weld area being arc-welded under predetermined welding conditions are alternately picked up by an optical device to extract various weld factors representing the actual status of the weld area from these pieces of optical information, and the extracted weld factors representing the actual status of the weld area are compared with the desired values of the weld factors representing the desired status of the weld area to compute the error or errors of the welding conditions, so that the welding conditions can be corrected on the basis of the detected error or errors of the welding conditions, whereby the weld factors can be controlled to the desired values.

61 citations

Journal ArticleDOI
01 Dec 2011
TL;DR: An attempt was made to minimize weld bead width, a good indicator of bead geometry, using optimization procedures based on the genetic algorithm (GA) and particle swarm optimization (PSO) algorithm to determine optimal weld parameters.
Abstract: In submerged arc welding (SAW), weld quality is greatly affected by the weld parameters such as welding current, welding speed; arc voltage and electrode stickout since they are closely related to the geometry of weld bead, a relationship which is thought to be complicated because of the non-linear characteristics. However, trial-and-error methods to determine optimal conditions incur considerable time and cost. In order to overcome these problems, non-traditional methods have been suggested. Bead-on-plate welds were carried out on mild steel plates using semi automatic SAW machine. Data were collected as per Taguchi's Design of Experiments and regression analysis was carried to establish input-output relationships of the process. By this relationship, an attempt was made to minimize weld bead width, a good indicator of bead geometry, using optimization procedures based on the genetic algorithm (GA) and particle swarm optimization (PSO) algorithm to determine optimal weld parameters. The optimized values obtained from these techniques were compared with experimental results and presented.

61 citations

Journal ArticleDOI
TL;DR: In this article, a comparison between three welding processes, namely, shielded metal arc welding, gas tungsten arc welding and flux cored arc welding (FCAW), was made.

61 citations

Journal ArticleDOI
TL;DR: In this paper, an innovative additive manufacturing (AM) system using low power pulsed laser assisted MIG arc welding (L-M) was proposed to manufacture metal products, revealing how width and height dimension of the manufactured thin-wall component are affected by the laser power.

61 citations

Journal ArticleDOI
TL;DR: In this article, the effects of shielding gas, heat input and post-weld heat treatment on the microstructural evolution and wear resistance of a modified AISI H13 martensitic tool steel deposited by semi-automatic gas shielded arc welding process using a tubular metal-cored wire, were studied.

60 citations


Network Information
Related Topics (5)
Welding
206.5K papers, 1.1M citations
92% related
Alloy
171.8K papers, 1.7M citations
78% related
Microstructure
148.6K papers, 2.2M citations
76% related
Machining
121.3K papers, 1M citations
76% related
Deformation (engineering)
41.5K papers, 899.7K citations
75% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202396
2022186
2021303
2020685
2019807
2018922