西安不鏽鋼加工時主要的難點

摘要：<span style="font-family:宋體;font-size:small;"> </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;"><a href="/timemodel/firstctg/2013-09-30/3140744/1.html" target="_blank">西安不鏽鋼加工</a>時主要的難點</span></span><span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">一、加工時，刀具與工具的發熱量高，刀具易磨損，因此，對刀具要有一定的要求，要耐磨耐高溫。同時，做到刃口要鋒利，選擇合理角度。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">二、轉速慢，切削時受力較大。生產效率不高。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">三、發熱量高，冷卻油選擇很重要，一般用氯化硫。效果較好。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">四、鑽深孔及攻絲，難度*大。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">五、加工不鏽鋼，工人要有一定的經驗和過硬的技術。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">西安不鏽鋼的加工性能：</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">1、</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不鏽鋼切削時塑形大、韌性高，切削時消耗能量大，切削溫度高。不鏽鋼導熱率低，散熱不好易形成刀具高溫</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不鏽鋼粘結凝焊性強，切削過程中易形成積屑瘤</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不鏽鋼加工硬化傾向強，切削表麵易形成硬化層</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不鏽鋼不易斷屑，切削過程中易堵塞，影響加工表麵的光潔。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">2、</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不鏽鋼切削刀具：前角，前角不易太大，一般取</span><span style="font-family:'Times New Roman';"><span lang="EN-US">12--30°;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">前麵，前麵磨出月牙形導屑槽可改善切削條件</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">後角，對硬質合金車刀，後角應為</span><span style="font-family:'Times New Roman';"><span lang="EN-US">6--10°</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">，對高速鋼車刀，後角應為</span><span style="font-family:'Times New Roman';"><span lang="EN-US">8--12°;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">主偏角</span><span style="font-family:'Times New Roman';"><span lang="EN-US">60--75°;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">副偏角，應為</span><span style="font-family:'Times New Roman';"><span lang="EN-US">8--20°;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">在粗車時應大於零，在精車</span></span><span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">時應小於零</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">刀尖半徑，一般為</span><span style="font-family:'Times New Roman';"><span lang="EN-US">0.2--0.8mm</span></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">。</span></span><span style="font-family:宋體;font-size:small;"> </span> </p> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">3、</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不鏽鋼切削中的冷卻潤滑：采用冷卻潤滑性能較好的潤滑液，如硫化油、極壓乳化油、錠子油、油酸或植物油等。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span lang="EN-US"><span style="font-family:'Times New Roman';font-size:small;"> </span></span> </p> <span style="font-family:宋體;font-size:small;"> </span>