關於鑽孔加工時間算法 - 考試

By James
at 2015-11-23T01:10
at 2015-11-23T01:10
Table of Contents
欲在30 mm 厚之鋼板上,利用直徑20 mm 之鑽頭,鑽一貫穿孔。設鑽削轉速400 RPM,
進給速率0.2 mm/rev,鑽削開始位置為鑽頭輕觸工件表面,
求鑽穿工件所需時間約為若干?
本人非機械本科
想請問一下這題 應該是套用孔加工時間公式
時間=工件長度/(進給速率*轉速)
算出來答案是3/8分鐘 換算大約是22.5秒
可是答案是27秒
想請問算法哪裡有錯誤
--
進給速率0.2 mm/rev,鑽削開始位置為鑽頭輕觸工件表面,
求鑽穿工件所需時間約為若干?
本人非機械本科
想請問一下這題 應該是套用孔加工時間公式
時間=工件長度/(進給速率*轉速)
算出來答案是3/8分鐘 換算大約是22.5秒
可是答案是27秒
想請問算法哪裡有錯誤
--
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