When using CNC lathes for workpiece processing, we all hope to maximize processing efficiency while ensuring processing quality. This not only saves a certain amount of production costs but also has a certain protective effect on the CNC lathe itself. In fact, optimizing the processing technology is a relatively direct and effective way to improve processing efficiency. Today, as a CNC lathe manufacturer, we will explain to you the methods of improving CNC lathe efficiency through optimizing processing technology.
1. Reasonable cutting parameters:
Finishing parameters: During finishing, a smaller cutting depth, a smaller feed rate, and a higher cutting speed (within the allowable range of the machine tool and cutting tool) are employed. A smaller feed rate can significantly improve surface roughness, while a smaller cutting depth can reduce deformation caused by cutting forces.
Avoid overcutting/undercutting: Ensure that the parameter settings effectively remove material and avoid insufficient or excessive actual cutting depth caused by tool feed or vibration.
2. Scientific cutting path:
Constant linear velocity cutting: For turning end faces or contours with large diameter variations, use the G96 constant linear velocity function to ensure a constant cutting speed at the cutting edge, achieving more consistent surface quality and dimensional accuracy.
Uniformization of finishing allowance: After rough machining, a uniform and appropriate finishing allowance (usually 0.1-0.5mm, depending on the workpiece and accuracy requirements) should be left. Uneven allowance can lead to fluctuations in cutting force during finishing, affecting accuracy and surface quality.
Smooth and continuous path: When programming, avoid sharp changes in path direction, and use circular arc transitions instead of sharp corner transitions to reduce the impact and vibration of machine acceleration and deceleration.
Layered cutting: For deep grooves and areas with large allowances, layered cutting is employed to avoid tool overload and tool deflection.
3. Reduce/eliminate deformation caused by cutting force:
For thin-walled/weakly rigid workpieces: Optimize the clamping method (such as adding supports, using axial clamping instead of radial clamping), and adopt methods such as small cutting depth, multiple passes, and symmetrical machining to balance the cutting force. Consider using a tool holder or a center frame.
Tool rigidity: Select a tool holder with good rigidity or a thicker tool holder.
4. Rationally utilize compensation function:
Tool nose radius compensation: Properly use G41/G42 tool nose radius compensation during programming to avoid overcutting or undercutting caused by tool nose radius.
Tool wear compensation: During the machining process, regularly measure key dimensions, and input the deviation between the measured value and the theoretical value into the system as the tool wear compensation value (usually modifying the X/Z or R/T values in the tool compensation number).
The above are the methods we, as a CNC lathe manufacturer, Haisu Machinery, have compiled and released to improve the efficiency of CNC lathes through optimizing the machining process. We hope the explanations above will be of some help to everyone when operating CNC lathes in the future.