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For CNC lathes, the simplicity and efficiency of programming code are crucial, as it not only significantly reduces operational costs but also effectively enhances machining precision. However, optimizing programming code is not an easy task—it requires extensive programming experience to accomplish. Today, Haisun Machinery, a CNC lathe manufacturer, will outline three common methods for optimizing CNC lathe programming code.
1. Process Route Design:
       Benchmark Uniformity: Strive to adhere to the "benchmark uniformity" principle to minimize clamping operations and benchmark conversion errors. For high-precision components, consider "single clamping and multi-face machining.".
       Separation of rough and finish machining: Rough machining focuses on efficiency, removing most of the excess material, while finish machining prioritizes precision, leaving a uniform and appropriate finish allowance (typically 0.1-0.5mm) to eliminate the effects of internal stress and thermal deformation caused by rough machining.
       Rationalize the process sequence: machine the large surfaces and datum surfaces first, followed by the local features; machine the low-precision areas first, then the high-precision areas.
2. Cutting parameter optimization:
       Under the premise of ensuring tool life and machining quality, reasonably select the cutting speed (Vc), feed rate (f), and cutting depth (ap).
       During precision machining, higher spindle speeds, smaller feed rates, and reduced depths of cut are commonly employed to minimize cutting forces, thermal deformation, and residual area height (which affects surface roughness).
3. CNC Programming Techniques:
       Toolpath: Optimize the finishing path to ensure continuity and smoothness, avoiding abrupt direction changes and sudden cutting force variations. Use constant surface speed cutting (G96) to maintain consistent surface quality.
       Program debugging: Utilize the machine tool's single-block operation, dry run, and graphic simulation functions to inspect the program, preventing tool collisions and logical errors.
       Subroutines and Cycles: Utilize subroutines and fixed cycles (such as G70/G71/G72/G73) to enhance program stability and reliability.
The above are the three most common methods for optimizing CNC lathe programming codes, compiled by Haisun Machinery, a CNC lathe manufacturer. We hope the following explanations will be helpful to you in optimizing programming codes in the future.