西安不锈钢加工时主要的难点

摘要：<span style="font-family:宋体;font-size:small;"> </span><span style="font-family:宋体;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">西安不锈钢加工</a>时主要的难点</span></span><span style="font-family:宋体;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">一、加工时，刀具与工具的发热量高，刀具易磨损，因此，对刀具要有一定的要求，要耐磨耐高温。同时，做到刃口要锋利，选择合理角度。</span></span> </p> <span style="font-family:宋体;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">二、转速慢，切削时受力较大。生产效率不高。</span></span> </p> <span style="font-family:宋体;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">三、发热量高，冷却油选择很重要，一般用氯化硫。效果较好。</span></span> </p> <span style="font-family:宋体;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">四、钻深孔及攻丝，难度*大。</span></span> </p> <span style="font-family:宋体;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">五、加工不锈钢，工人要有一定的经验和过硬的技术。</span></span> </p> <span style="font-family:宋体;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";"><span style="font-size:small;">西安不锈钢的加工性能：</span></span> </p> <span style="font-family:宋体;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">1、</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不锈钢切削时塑形大、韧性高，切削时消耗能量大，切削温度高。不锈钢导热率低，散热不好易形成刀具高温</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不锈钢粘结凝焊性强，切削过程中易形成积屑瘤</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不锈钢加工硬化倾向强，切削表面易形成硬化层</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不锈钢不易断屑，切削过程中易堵塞，影响加工表面的光洁。</span></span> </p> <span style="font-family:宋体;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">2、</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不锈钢切削刀具：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:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">前面，前面磨出月牙形导屑槽可改善切削条件</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">后角，对硬质合金车刀，后角应为</span><span style="font-family:'Times New Roman';"><span lang="EN-US">6--10°</span></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">，对高速钢车刀，后角应为</span><span style="font-family:'Times New Roman';"><span lang="EN-US">8--12°;</span></span><span style="font-family:宋体;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:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">副偏角，应为</span><span style="font-family:'Times New Roman';"><span lang="EN-US">8--20°;</span></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">在粗车时应大于零，在精车</span></span><span style="font-size:small;"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">时应小于零</span><span style="font-family:'Times New Roman';"><span lang="EN-US">;</span></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">刀尖半径，一般为</span><span style="font-family:'Times New Roman';"><span lang="EN-US">0.2--0.8mm</span></span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">。</span></span><span style="font-family:宋体;font-size:small;"> </span> </p> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">3、</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";">不锈钢切削中的冷却润滑：采用冷却润滑性能较好的润滑液，如硫化油、极压乳化油、锭子油、油酸或植物油等。</span></span> </p> <span style="font-family:宋体;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:宋体;font-size:small;"> </span>