First, the programming skills, the high precision of the processed products, the things that need to be considered during programming are:
　(1) The processing time of the parts: first drilling the flat end (this is to prevent shrinkage when drilling); first roughing the car, then finishing the car (this is to ensure the accuracy of the parts); the first machining tolerance with large machining tolerance is small (This is to ensure that the surface of the small tolerance is not scratched and the part is prevented from being deformed).
　(2) Select a reasonable speed, feed rate and depth of cut according to the hardness of the material.　
　1. Carbon steel material chooses high speed, high feed rate and large depth of cut. Such as: 1Gr11, choose S1600, F0.2, depth of cut 2mm;
　　2. hard alloy selection of low speed, low feed rate, small depth of cut. Such as: GH4033, choose S800, F0.08, depth of cut 0.5mm;
　　3. Titanium alloy selects low speed, high feed rate and small depth of cut. Such as: Ti6, select S400, F0.2, depth of cut 0.3mm. Take a part of my processing as an example: the material is K414. This material is a special hard material. After many experiments, the final choice is S360, F0.1, and depth of cut 0.2 to process qualified parts. There are still a lot of programming skills, and my personal summary is about the same.
　　Second, the tooling skills, the knife is divided into the knife tool and the knife. Most of the lathes do not have a tool setting tool, which is a direct tool setting. The following tooling technique is a direct tool setting.
　　First select the center of the right end of the part as the tool setting point, and set it to zero point. After the machine returns to the original point, each tool used in the required part is zero point to the center of the right end face of the part; the tool touches the right end face and inputs Z0 to measure. The value of the measured value is automatically recorded in the tool compensation value of the tool. This means that the Z axis is correct for the knife. The X tool is the trial cutting tool. The outer circle of the tool car part is less, and the outer circle value is measured. If x is 20mm) input x20, click on the measurement, the tool compensation value will automatically record the measured value, then the x-axis is also correct; this tool-setting method, even if the machine is powered off, the call will not change after restarting. The value of the knife can be applied to the same part for a long time in large quantities, and the lathe is not required to be re-tooled.
　　Third, debugging skills　
　　After the parts are programmed, the requirements for the good knives are aborted. In order to prevent errors in the program and mistakes in the knives, it is a collision accident. We should first stop the idle stroke simulation processing, in the coordinate system of the machine tool. The tool translates the total length of the part to the right by 2 to 3 times; then the simulation is started at the beginning. After the simulation is completed, the program and the tool are correct. Then the part is stopped. After the first part is processed, the first part is self-tested and confirmed. , then find a full-time inspection and inspection, after the full-time inspection confirmed that this means the end of commissioning.
　　Fourth, complete the processing of parts
　　After the first part of the test is completed, the parts will be discontinued in batches, but the qualification of the first part does not mean that the whole part will be qualified. Because the tool will wear out due to the difference of the processed materials during the processing, the processed material Soft, the tool wear is small, the processing material is hard, and the tool wears fast. Therefore, during the processing, it is necessary to diligently check the machine, increase and decrease the tool compensation value in time, and ensure the qualification of the parts. Take a part as an example, the processing material is K414. The total length of the processing is 180mm. Due to the extremely hard material, the tool wears very fast during machining. From the starting point to the end point, the tool wear will produce a slightness of 10-20mm. Therefore, we must participate in the program artificially 10-20mm. Slightly, in this way, the ability to ensure the qualification of the parts.