This document outlines the autogenous TIG welding workflow and process parameters for 316L stainless-steel 90° elbow fittings (25.4 mm × 1.68 mm) typically used in semiconductor vacuum systems. The procedure is based on the Panasonic YC-400TX4 TIG welding machine and is specifically optimized for elbows that consist of an outer sharp corner and an inner […]
1 Basic Information 2 Welding Procedure (1) Initial Tack Weld (No Filler) Purpose:Create the first tack point to ensure the correct position and angle between the VCR fitting and the main tube. Parameters: Key Points:Focus the arc on the edge of the joint and strictly control the duration to avoid overheating or burn-through of the
VCR TIG Welding Procedure and Parameters for Semiconductor Vacuum Piping Read More »
一、 Project Background This project involved tack welding a 316L stainless steel high-purity tube to a flange. The tube thickness was 1.6mm, welded by TIG at 39A using 0.8mm filler wire. High-purity argon was used for back purging to keep the weld interior clean and oxidation-free. 二、Welding Parameters Item Specification Process TIG (GTAW) Material 316L
Tack Welding Experience of High-Purity Stainless Steel Tube to Flange Read More »