{"id":20340,"date":"2021-02-18T02:15:11","date_gmt":"2021-02-18T02:15:11","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=20340"},"modified":"2021-10-11T06:06:28","modified_gmt":"2021-10-11T06:06:28","slug":"this-is-the-most-concise-intro-ever-about-twist-drill-grinding","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/zh\/this-is-the-most-concise-intro-ever-about-twist-drill-grinding\/","title":{"rendered":"\u8fd9\u662f\u5173\u4e8e\u9ebb\u82b1\u94bb\u78e8\u524a\u7684\u6700\u7b80\u6d01\u4ecb\u7ecd"},"content":{"rendered":"
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\u78e8\u524a\u9ebb\u82b1\u94bb\u7684\u7a0b\u5e8f<\/h2>\n\n\n\n


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\"\"<\/figure>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

After grinding one edge, grind the other edge again. The edge must be in the middle of the drill axis, and the edges on both sides should be symmetrical. The experienced master will observe the symmetry of the drill point in front of the bright light and slowly grind it. The back angle of the cutting edge of the bit is generally 10 \u00b0 – 14 \u00b0 with large back angle, the cutting edge is too thin, the vibration is severe during drilling, the orifice is trilateral or pentagonal, and the chip is needle shaped; with small back angle, the axial force is very large during drilling, it is difficult to cut in, the cutting force increases, the temperature rises greatly, and the bit heats seriously, or even cannot drill. The back angle grinding is suitable, the front point is in the center, and the two edges are symmetrical. When drilling, the bit can discharge chips quickly, without vibration, and the hole diameter will not expand.<\/p>\n\n\n\n

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\u9ebb\u82b1\u94bb\u4fee\u78e8\u6ce8\u610f\u4e8b\u9879<\/p>\n\n\n\n

\u78e8\u9ebb\u82b1\u94bb\u7684\u6ce8\u610f\u4e8b\u9879<\/h2>\n\n\n\n

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\"\"<\/figure>\n\n\n\n

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Twist drill is a common drilling tool with simple structure. It is very important to sharpen the drill well for workpiece processing, but it is not easy to sharpen it well. The key is to master the grinding methods and skills. If we master the grinding methods and experience for many times, we can master…<\/p>","protected":false},"author":2,"featured_media":20343,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[92],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2021\/02\/u37370423744270713551fm26gp0.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts\/20340"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/comments?post=20340"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/posts\/20340\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/media\/20343"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/media?parent=20340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/categories?post=20340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/zh\/wp-json\/wp\/v2\/tags?post=20340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}