衡水自润滑轴承厂家和你分析车削轴类工件表面粗糙度达不到要求的主要原因

衡水自润滑轴承厂家和你分析车削轴类工件表面粗糙度达不到要求的主要原因

     ，专业生产轴承，轴套，轴瓦，滑板，滑块，导轨，衬板、自润滑轴承、卷板层冷辊、烧结机台车轴承、铜基镶嵌石墨、自润滑滑板等产品，网址：***

      今天自润滑和大家分析车削轴类工件表面粗糙度达不到要求的主要原因，如下：
原因1.车床刚性不足 如拖板塞铁松动、传动不平衡而引起振动.当然，车床安装不稳固也会引起振动，因为振动而造成工件表面粗糙度降低.
原因2.车刀刚性不足引起振动所以尽可能选用粗刀杆，减少车刀伸出一长度；工件刚性不足也会引起振动，故在车削细长轴时要应用中心架，或用一夹一顶来代替两顶尖装夹。
原因3.车刀切削部分几何参数不正确根据工件材料的可切削特性选用合理、合适的切削角度，降低表面粗糙度。
原因4.因为积屑瘤的产生，使工件表面粗糙度降低积屑瘤非常牢固，切削时因为积屑瘤的参与，使工件表面出现拉毛或一道道划沟痕的现象，车削时应尽量避免其产生。结合上述原因分析，加工中应做到早知道早预防，把问题消灭在萌芽状态，提高工件精度，满足设计要求。

Hengshui self-lubricating bearing manufacturers, specializing in the production of bearings, sleeve, bearing and sliding plate, a sliding block, a guide rail, lining board, self lubrication bearing, coil layer of cold roll, sintering machine trolley bearing, copper base mosaic graphite, self lubricating slide and other products.: ***
Today, the production of self lubricated bearings manufacturers and analysis of the surface roughness of the workpiece surface roughness of the workpiece is not required to reach the main reasons, as follows:
Reason 1. Lathe rigidity problems such as carriage plug iron loose, transmission disequilibrium caused by vibration. Of course, lathe unstable installation will caused by vibration, because of vibration caused by the workpiece surface roughness decreased.
. tool insufficient rigidity caused by vibration so as far as possible, use coarse knife rod, reduced tool is extending a length; and low rigidity of the workpiece will cause vibration, so when turning slender shaft to application center frame, or with a clip a top to replace two of the top clamping.
Reason 3. Cutting tool geometry parameters is not correct according to the workpiece material can be cutting characteristics selection of reasonable and appropriate cutting angle and reduce the surface roughness.
4. Because the product a built-up, workpiece surface roughness decreased bue very firmly, cutting because the product in a built-up, workpiece surface appear napping or a road zoned phenomenon of grooves, turning should try to avoid. Combined with the above analysis, the process should be done as early as early prevention, to eliminate the problem in the bud, improve the accuracy of the workpiece, meet the design requirements.