The Formation Mechanism and Suppression Strategies of Spatter in Pulsed Gas Metal Arc Welding for Titanium Alloy

• DOI: 10.29391/2024.103.020
• Publication Date: 2024-04-09T18:34:36Z
• Authors: ZHENDAN ZHENG; SHAOJIE WU; LIMIN FAN; HAO WU; FANGJIE CHENG
• Keywords: Weld pool; Titanium alloy

The GMAW process for titanium alloy is not commonly applied within the industry due to occurrence of severe spatter. This research endeavors elucidate mechanism underlying spatter formation and explore efficacious strategies suppress experimental results demonstrated existence two distinct types: large small particles. high- speed images synchronous electrical signals were utilized determining mechanism, with force analysis serving mutually validate inferences. particles originated from whole transitional molten droplet as it descended arc space, while formed by partial contacted weld pool. cathode jet accounted particles, whereas electromagnetic was responsible To spatter, increasing detachment current decreasing pulsing frequency employed. Consequently, rate witnessed a remarkable decrease 14.00% 3.33% progressive increment in 100 A 300 A, corresponding decline 12.67% 1.33% upon decrementing 90 Hz 50 Hz. suggests that judicious increase can effectively concurrently preserving welding efficiency.