Cutting efficiency in molds is evaluated by the amount of chips discharged per unit time.
To increase the chip removal rate, the machine feed rate and tool speed should be increased.
Of course, there are limit values, and setting conditions that exceed these limit values can cause damage to the tool or machine.
One of the factors that can cause breakage is a lack of control over the load applied to the tool.
For example, in the case of corner machining as shown above, the load on the tool is greater in the F1 area than in the F2-F3 area because the amount of cutting is larger in the F1 area than in the F2-F3 area. Therefore, if cutting is performed in the F1 area at the F2-F3 feed rate setting, the risk of tool breakage increases. Therefore, in the F1 area, the feed rate is reduced by about 40%.
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