When processing china vertical turret milling machine, how to ensure the quality of china vertical turret milling machine is a matter of great concern during mold processing. Generally speaking, the following aspects should be paid attention to when using china vertical turret milling machine.

(1) Select appropriate mold materials

China vertical turret milling machine processing is generally performed after the blank is hardened. If carbon tool steels such as T8A and T10A are used, the hardened layer is shallow because it is difficult to quench through. After use and grinding, the quenched layer may be ground. dropped and the hardness dropped significantly. In order to improve the service life and processing accuracy of china vertical turret milling machine molds, alloy tool steel or carbide with good hardenability should be used to make them. The hardness of these materials does not decrease significantly from the surface layer to the center.

(2) Improve mechanical transmission accuracy

Mechanical transmission accuracy has a great influence on machining accuracy. The displacement accuracy of the workbench and the movement accuracy of the electrode wire directly affect the machining accuracy. Since the movement of the workbench is driven by multiple transmission pairs, such as gear pairs, screw nut pairs, etc., their transmission accuracy directly affects the machining accuracy. The movement accuracy of the electrode wire is also greatly affected by the rotation accuracy of the guide wheel, uneven wear of the guide wheel, and relaxation of the electrode wire. It can be seen that low mechanical transmission accuracy has a great impact on processing quality.

(3) Reduce residual stress

When processing with china vertical turret milling machine, large pieces of metal will be cut off, which will destroy the relative equilibrium state of the internal residual stress of the material, and the stress will be redistributed. The residual stress in the material sometimes has a more serious impact on the processing accuracy than factors such as machine tool accuracy. It can cause deformation to a macroscopic level, and the material may even break during the cutting process. In order to reduce the deformation caused by residual stress, corresponding measures should be taken, such as the correct selection of heat treatment specifications; the workpiece contour should be 8-100mm away from the edge of the blank; aging treatment can be carried out before the china vertical turret milling machine; pre-processing before quenching , remove most of the margin; when performing china vertical turret milling machine, use the secondary cutting method, rough cutting the hole for the first time, and then fine-cut the hole when the stress reaches a new balance; choose the correct cutting sequence, etc. The above measures are of great benefit in reducing residual stress in materials.

(4) Reduce surface roughness

The surface roughness of the mold cavity has a great impact on the quality of the plastic parts. Every effort should be made to reduce the surface roughness during cutting and processing. For this reason, relevant measures should be taken. If the electrode wire is not tensioned enough, it should be tightened at any time; the feed speed should be adjusted appropriately to avoid speed fluctuations; too large a mechanical transmission gap can easily cause the electrode wire to shake and increase the roughness. Large, for this reason, the tightness of each mechanical transmission part must be adjusted in time; the electrical parameters must be correctly selected to avoid a single pulse being too large. In addition, if the electrode wire moves too fast or vibrates, it will also affect the surface roughness of the part. They are all detrimental to quality improvement.

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