How to Choose the Right Helium Welding Gas Mix?
It is recommended Ar/He blend with 30%-50% helium is welded in 0.8-3mm stainless steel sheet and can raise arc temperature to 18000K (pure argon only 12000K) and contribute 40% to penetration depth. Boeing Company’s 2022 report showed that He75%+Ar25% blended welding aviation aluminum (6mm thickness), the welding speed as high as 1.2m/min (60% better than […]
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