{"id":2411,"date":"2026-03-27T06:48:52","date_gmt":"2026-03-27T06:48:52","guid":{"rendered":"https:\/\/hephaprecision.com\/?p=2411"},"modified":"2026-03-18T08:42:46","modified_gmt":"2026-03-18T08:42:46","slug":"punch-replacement","status":"publish","type":"post","link":"https:\/\/hephaprecision.com\/ja\/punch-replacement\/","title":{"rendered":"\u30d1\u30f3\u30c1\u4ea4\u63db\u304c\u3057\u3070\u3057\u3070\u4e00\u8cab\u6027\u306e\u306a\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3064\u306a\u304c\u308b\u7406\u7531"},"content":{"rendered":"

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Replacing a worn punch is usually considered a routine operation. But in precision stamping, many engineers have experienced this: A new punch is installed, dimensions are within tolerance \u2014 yet performance changes. Burrs increase. Tool life becomes unpredictable. Edge chipping appears earlier than expected. Why? Because punch replacement is not only about dimensions. It is about geometry consistency. In high-precision applications, especially in progressive dies and connector stamping, even microscopic variations can affect the entire process. Two punches may look identical on paper, but behave very differently in production. This is where profile grinding becomes critical. It is not only about achieving tight tolerances, but about ensuring that every detail […]<\/p>","protected":false},"author":1,"featured_media":2413,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"#gspb_iconsList-id-gsbp-99f5556.gspb_iconsList .gspb_iconsList__item__text{margin-left:15px}#gspb_iconsList-id-gsbp-99f5556.gspb_iconsList .gspb_iconsList__item{display:flex;flex-direction:row;align-items:center;position:relative}#gspb_iconsList-id-gsbp-114f5df.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-73afcae.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-99f5556.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-af3ba5d.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-bfbc383.gspb_iconsList .gspb_iconsList__item svg path,#gspb_iconsList-id-gsbp-d1d28be.gspb_iconsList .gspb_iconsList__item svg 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