<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[钻孔 — 模具行业的实用知识——模具行业从业者必备知识手册]]></title><description><![CDATA[<p dir="auto">钻孔是模具制造中最基础的加工工序之一，广泛应用于冷却水道、螺丝孔、顶针孔和排气孔的加工。模具钻孔对孔径公差和位置精度要求较高，选择合适材质的钻头十分重要。硬质合金钻头适用于高硬度模具钢，高速钢钻头适用于一般钢材。钻孔时需注意冷却润滑，防止切屑堵塞导致钻头断裂。对于深孔，推荐采用啄钻方式分段进退排屑。</p>
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<p dir="auto">踩过坑的来评论区说说。</p>
]]></description><link>https://forum.mj7.cn/topic/4603/钻孔-模具行业的实用知识-模具行业从业者必备知识手册</link><generator>RSS for Node</generator><lastBuildDate>Tue, 11 Aug 2026 15:50:55 GMT</lastBuildDate><atom:link href="https://forum.mj7.cn/topic/4603.rss" rel="self" type="application/rss+xml"/><pubDate>Fri, 29 May 2026 02:05:19 GMT</pubDate><ttl>60</ttl></channel></rss>