How to Operate the Welding Process for Mold Texturing Successfully?
Example: Improper welding causes visible marks after VDI 3400 etching.
Standard Welding Procedure:
A. Pre-heat: Thoroughly pre-heat the mold prior to any welding operation to minimize thermal stress.
B. Material Matching: Always weld the mold using a welding rod made of the same steel as the parent metal (base material).
C. Heat Treatment: Post-weld heat-treat the entire mold to ensure uniform temperature and consistent material hardness.
Warning: Improper welding technique or mismatched welding rods will result in “Welding Marks” or “Ghosting” after chemical etching or laser texturing. Ensuring the same steel chemistry is vital for texture consistency.