Personal blog sharing tech insights, open source tools, and notes.https://dgf.ccwu.cc/zh-cnhttps://dgf.ccwu.cc/blog/hello-world/https://dgf.ccwu.cc/blog/hello-world/记录博客的诞生与搭建初衷，基于 Astro + Cloudflare Pages 架构。Fri, 28 Aug 2026 00:00:00 GMThttps://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch6-thread-design/https://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch6-thread-design/精读手册第六章「螺纹」，系统拆解普通紧固螺纹、梯形传动螺纹、锯齿重载螺纹、管螺纹密封体系与退刀槽等结构要素设计标准。Fri, 28 Aug 2026 00:00:00 GMThttps://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch2-dfm-structural-design/https://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch2-dfm-structural-design/深入剖析手册第二章「零部件结构设计工艺性」，从铸造、锻造、冲压、焊接、切削加工到装配工艺性，系统总结面向制造与装配的设计（DFM/DFA）核心法则。Fri, 28 Aug 2026 00:00:00 GMThttps://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch1-fundamentals/https://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch1-fundamentals/深度拆解机械设计手册第一章「常用基础资料和公式」，提炼工程单位量纲、材料物性直觉、经典强度理论、梁变形与稳定性校核的底层逻辑与实战心法。Fri, 28 Aug 2026 00:00:00 GMThttps://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch3-engineering-drawing/https://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch3-engineering-drawing/精读手册第三章「机械制图」，全面解析正投影视图表达、剖视图与断面图画法、尺寸基准标注链、公差符号与装配图简化画法规范。Fri, 28 Aug 2026 00:00:00 GMThttps://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch4-tolerances-fits-roughness/https://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch4-tolerances-fits-roughness/精读手册第四章，透彻解析基孔制与基轴制选择逻辑、标准公差等级选用心法、14项几何形位公差及表面粗糙度参数设计原则。Fri, 28 Aug 2026 00:00:00 GMThttps://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch7-fasteners-locking/https://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch7-fasteners-locking/精读手册第七章「紧固件」，系统梳理螺栓强度等级密码、预紧力矩计算、摩擦/机械/化学防松技术及销钉铆钉选型实战。Fri, 28 Aug 2026 00:00:00 GMThttps://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch5-engineering-materials/https://dgf.ccwu.cc/blog/mechanical-engineering-handbook-ch5-engineering-materials/精读手册第五章「机械工程材料」，系统梳理碳钢、合金钢、铸铁、有色金属、工程塑料选型边界与淬火、调质、渗碳热处理工艺链。Fri, 28 Aug 2026 00:00:00 GMThttps://dgf.ccwu.cc/blog/cloudflare-pages-deployment/https://dgf.ccwu.cc/blog/cloudflare-pages-deployment/详细记录如何将 Astro 静态博客部署到 Cloudflare Pages 并绑定 DNSHE 自定义域名的全过程。Fri, 28 Aug 2026 00:00:00 GMT