切削加工時(shí)影響刀具使用壽命的因素-展示頁
2024-11-17 18:34本頁面
【正文】 日 答 辯 記 錄 成績： 提問教師簽字： 年 月 日 答 辯 小 組 意 見 答辯成績： 答辯小組組長簽字： 年 月 日 切削加工時(shí)影響刀具使用壽命的 因素 新疆工業(yè)高等?？茖W(xué)校 |機(jī)械工程系 I 摘 要 隨著材料工業(yè)及精密機(jī)械工業(yè)的發(fā)展 ,精密切削、超精密切削和難切削材料使用的增多 ,刀具材料的應(yīng)用日益廣泛。 ,刀具壽命可比硬質(zhì)合金高幾十、甚至幾百倍。 關(guān)鍵詞 ： 刀具磨損 ；使用壽命 ；切削加工 ；因素 切削加工時(shí)影響刀具使用壽命的 因素 新疆工業(yè)高等?？茖W(xué)校 |機(jī)械工程系 II Abstract Along with material industry and precision machinery industry, precision machining, precision machining and the increased use of hard cutting materials, superhard tool materials are applied more and more extensively. Superhard material cutting tool has the advantages of high work efficiency, long service life and good processing quality and other characteristics, the past is mainly used for finish machining, in recent years due to the improvement of the artificial superhard tool materials production technology, control the purity of raw material and grain size, the posite materials and hotpressing process, expanding the scope of application, suitable for in general the semifinishing and finishing, can also be used for the rough machining, has been internationally recognized as the most promising contemporary productivity is one of the cutting tool materials. Use of superhard materials processing steel, cast iron, nonferrous metals and their alloys and other parts, the cutting speed than the carbide is one order of magnitude higher than the hard alloy, tool life, high dozens or even hundreds of times. At the same time, it appears, also make the traditional technology concept change, use of superhard cutting tools are often directly to the car, milling instead of grinding ( or polishing ), of hardened parts processing, can be used instead of single process procedures, greatly shorten the process. Key Word: tool wear。 factors 切削加工時(shí)影響刀具使用壽命的 因素 新疆工業(yè)高等專科學(xué)校 |機(jī)械工程系 III 目 錄 摘 要 ............................................................................................. I Abstract .......................................................................................... II 引言 ............................................................................................... 1 第 1 章 刀具的種類和材料 .......................................................... 3 刀具的種類 ........................................................................... 3 刀具的材料 ........................................................................... 3 碳素工具鋼和合金工具鋼 ........................................................................... 3 高速鋼 ........................................................................................................... 3 硬質(zhì)合金 ....................................................................................................... 4 涂層硬質(zhì)合金 ............................................................................................... 4 刀具材料應(yīng)具有的性能 ....................................................... 5 第 2 章 刀具的角度及選擇 .......................................................... 7 刀具的幾何形狀 .................................................................... 7 角度的選擇 ........................................................................... 8 前角的選擇 ................................................................................................... 8 后角、副后角的選擇 ................................................................................... 8 主偏角、副偏角的選擇 ............................................................................... 8 車刀切削部分的幾何參數(shù) ..................................................... 9 第 3 章 刀具的磨損 ....................................................................10 刀具的磨損過程和磨損原因 ................................................10 機(jī)械擦傷磨損 ................................................
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