Pay attention to the selection of cutting parameters
The three elements of cutting conditions for Swiss-type lathes, namely cutting speed, feed rate, and depth of cut, will directly cause damage to cutting tools. As the cutting speed increases, the temperature at the tool tip will rise, resulting in mechanical, chemical, and physical wear. When the cutting speed is increased by 20%, the tool life will be reduced by half. The impact of the feed rate on tool wear is smaller than that of the cutting speed. However, if the feed rate is large, the cutting temperature will rise and the tool wear will be greater. Although the impact of the depth of cut on the tool is not as great as that of the cutting speed and the feed rate, when cutting with a small depth of cut, the machined material will form a hardened layer, which will also affect the tool life.
Pay attention to the selection of cutting tools
When rough turning, choose cutting tools with high strength and good durability to meet the requirements of large depth of cut and large feed rate during rough turning.
When finish turning, choose cutting tools with high precision and good durability to ensure the requirements of machining precision.
In order to reduce tool changing time and facilitate tool setting, try to use indexable inserts and indexable cutting tools as much as possible.
Pay attention to the selection of fixtures
Try to use universal fixtures to clamp workpieces as much as possible and avoid using special fixtures.
The positioning datum of parts should coincide to reduce positioning errors.
Pay attention to the determination of the machining path
The machining path refers to the movement trajectory and direction of the cutting tool relative to the part during the machining process of the Swiss-type lathe.
It should be able to ensure the requirements of machining precision and surface roughness.
Try to shorten the machining path as much as possible and reduce the idle stroke time of the cutting tool.
When using a Swiss-type lathe, try to pay attention to the above four precautions as much as possible. Only by choosing an appropriate Swiss-type lathe can the machining efficiency and machining precision of the Swiss-type lathe be improved.
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