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This tutorial from Weld.com demonstrates the complete manual polishing process for stainless steel, transforming raw material into a mirror finish. Learn about different abrasives, how stainless steel finishes are measured, and follow detailed steps for achieving various finish grades including #3, #4, and #8, culminating in a perfect mirror finish. Discover techniques for setting baseline grain, removing deep scratches, and properly applying different abrasives throughout the 14-minute demonstration at the 3M CAM Center. Perfect for fabricators, welders, and metalworkers looking to enhance their finishing skills without expensive equipment. Access additional resources including a free PDF Welding Symbol Guide and connect with the welding community through the WELD App for feedback on your projects.
Syllabus
00:00 Introduction
01:00 Overview Of Different Abrasives
01:38 How Are Stainless Steel Finishes Measured
03:05 Setting The Baseline Grain In All Samples
04:38 Removing Deep Scratches
06:05 Checking Baseline Results
06:51 Getting A #3 Stainless Steel Finish
08:55 Getting A #4 Stainless Steel Finish
10:22 Getting A #8 Stainless Steel Finish
12:50 Polishing Stainless Steel To A Mirror Finish
Taught by
Weld.com