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ENGLISHThe diversity of demand for hardware parts in various industries is becoming more and more obvious. At the same time, the processing quality and processing efficiency of hardware parts are getting higher and higher, the degree of automation is high, and the application of stainless steel CNC processing equipment is more and more extensive. What are the errors in general stainless steel CNC machining?
The principle error of stainless steel CNC machining is due to the approximate machining motion or the approximate tool profile. Because of the error in the machining principle, it is called the machining principle error. The principle error is required to be within the allowable range.Machine manufacturing manufacturing errors, installation errors, and wear during use directly affect the machining accuracy of the workpiece. Among them are the machine tool spindle rotary motion, the machine tool guide linear motion and the machine tool drive chain error.
Manufacturing errors, mounting errors, and wear during use of stainless steel CNC machining tools all affect the machining accuracy of the workpiece. During the cutting process, the cutting edge, the cutting surface and the workpiece and the chip generate strong friction, which causes the tool to wear. When the tool wear reaches a certain value, the surface roughness value of the workpiece increases, and the color and shape of the chip change, accompanied by vibration. Tool wear will directly affect cutting productivity, processing quality and cost.
Fixture errors include positioning error, clamping error, fixture mounting error, and tool setting error. These errors are primarily related to the manufacturing and assembly accuracy of the fixture. In the stainless steel CNC machining process, the error must be controlled within a certain range to ensure the machining accuracy of the workpiece.
The positioning error mainly includes the reference misalignment error and the positioning sub-manufacturing inaccuracy error. When machining the workpiece on the machine tool, several geometric elements on the workpiece must be selected as the positioning reference during machining. If the selected positioning reference does not coincide with the design reference, the reference misalignment error will occur, and the workpiece positioning surface and the fixture positioning component will be generated. The positioning of the positioning pair is common, and the large position change of the workpiece caused by the inaccurate positioning of the positioning pair and the matching gap between the positioning pairs is called the positioning sub-manufacturing inaccuracy error.When the part is measured during or after machining, the measurement accuracy is directly affected by the measurement method, the accuracy of the gage, and the workpiece and subjective and objective factors. Stainless steel CNC machining errors should be avoided as much as possible.
