慢走丝线切割（wedm-ls）.docVIP

慢走丝线切割（wedm-ls） WEDM technology and operation skills in WEDM technology and operation skills in In 1 introduction the WEDM is widely used and important in plastic mold, precision multi position progressive die in the production process, can ensure good dimensional accuracy, directly affect the assembly accuracy and precision die and mold service life etc.. Because of the high accuracy of the workpiece, so if a little negligence in the process, it will cause the workpiece to be scrapped, but also will have a negative impact on the manufacturing cost and processing cycle of the mold. The In the slow wire cutting machine programming and operating process, combined with many years of production practice, aiming at the deformation problems arising in the process and the difficulties encountered, summed up several processing methods and processing operation of the program (using the AGIE fourth generation of D series wire cutting machine, machining accuracy is + 0.003mm 99.9%, the brass wire electrode, immersed in deionized water and cooling). The 2 punch processing technology The punch plays an important role in the die. Its design shape, size, precision and material hardness all affect the blanking quality, the service life and the stamping precision of the die directly. In the actual production process, due to residual internal stress and deformation of the workpiece blank and discharge the thermal stress generated by the deformation, so it should be firstly processed through the wire hole closed cutting (Figure 1), as far as possible open cutting and deformation to avoid (Figure 2). If the workpiece size is limited to the closed form of cutting, for square blank parts, in programming should pay attention to choose a good cutting line (or cutting direction). The cutting route should be beneficial to ensure that the workpiece is always kept in the same coordinate system with the fixture (clamping support frame) during the machining process to avoid the influence of str