In CNC lathe machining, due to the tool, workpiece material, and programming methods, there may be to end straight line and arc meet the place of non-smooth situation. The following are some possible causes of this phenomenon, as well as some solutions:
1. Unreasonable tool selection: If the tool structure is not reasonably designed, it may lead to the phenomenon of burrs and increased wear of the cutting edge when machining the end face, so it is necessary to choose the right tool to avoid this phenomenon. For example, when the need to process the straight line of the bore to meet the arc, you need to choose a good cutting performance of the tool, in order to avoid the phenomenon of letting the knife.
2. Cutting parameters are not set reasonably: in the machining of the end face, according to the workpiece material and tool type to set the appropriate cutting parameters, such as feed rate, depth of cut and cutting speed, etc. If these parameters are not set reasonably, it is necessary to choose a suitable tool to avoid this phenomenon. If these parameters are not set reasonably, it may lead to excessive cutting force, resulting in the end face straight line and arc where the phenomenon of non-smooth.
3. Uneven hardness of the workpiece material: If the hardness of the workpiece material is not uniform, it may lead to the phenomenon of non-smoothness where the straight line of the end face and the arc meet. Therefore, the workpiece needs to be properly heat-treated before machining to improve its hardness uniformity.
4. Incorrect programming method: When programming, it is necessary to choose the appropriate programming method according to the shape of the workpiece and machining requirements. If the programming method is incorrect, it may lead to the phenomenon of non-smoothness where the end face straight line and the circular arc meet. For example, in the processing of two arcs docking, you need to choose the appropriate transition arc programming method to avoid the phenomenon of non-smooth.
5. Machine tool accuracy errors: machine tool accuracy errors may also lead to the end straight line and arc meeting the phenomenon of non-smooth. Therefore, it is necessary to regularly check and maintain the accuracy of the machine tool to ensure that its accuracy meets the processing requirements.
In summary, in CNC lathe machining, the phenomenon of non-smoothness in the place where the straight line and circular arc of the end face meet may be caused by a variety of reasons. Therefore, it needs to be analysed and solved according to the specific situation in the machining process to ensure machining quality and efficiency.