Troubleshooting Wrinkles & Wavy Rim

下凹起皱与边缘波浪排查

type:troubleshooting · level:intermediate · material:copper · material:silver · material:aluminium · scale:jewellery · scale:decorative-object · equipment:hand-tools · stage:patternmaking

标签：起皱, 波浪边, 延展, 锤法, 缺陷

下凹时起皱多因金属过薄、锤击不均或一次压下过深；边缘波浪因径向延展不均。排查：①料厚是否足够；②是否从中心均匀向外；③每道压下量是否过大。补救：退火后置于平砧从外向内轻敲收边，严重皱褶需剪除重下。

Wrinkles come from too-thin metal, uneven blows or too-deep single passes; a wavy rim from uneven radial stretch. Check: ①is the blank thick enough; ②did you work evenly centre-out; ③was each pass too deep. Fix: anneal, then tap from outside in on a flat anvil to gather the edge; severe wrinkles need trimming and restarting. ---