Machining path planning

Reduce empty stroke: Analyze the structure and processing requirements of the workpiece, reasonably plan the path of the tool, and minimize the empty stroke time of the tool in the non-cutting area. For example, in the multi-cavity mold processing, by optimizing the cutting sequence of the tool, the tool can quickly move to the next cavity in the shortest path after completing the processing of a cavity, reducing unnecessary round-trip movement.

Avoid repeated cutting: Accurately calculate the cutting range and path of the tool to avoid repeated cutting of the tool in the machined area. This can not only improve the processing efficiency, but also reduce tool wear and the thermal effect of the workpiece surface, and improve the processing quality. For example, when milling a plane, set the cutting width and step of the tool reasonably to ensure that the connection between the adjacent tool rails is close to avoid overlapping or missing areas.

Cutting parameter adjustment

Optimization according to material characteristics: different machining materials have different mechanical properties and processing characteristics, and the cutting parameters should be adjusted according to the hardness and toughness of the material. For materials with higher hardness, such as alloy steel, quenched steel, etc., the cutting speed should be appropriately reduced, the feed rate and cutting depth should be increased, in order to give full play to the cutting performance of the tool and improve processing efficiency. For materials with good toughness, such as aluminum alloy, copper alloy, etc., the cutting speed can be appropriately increased and the feed amount reduced to avoid excessive deformation and tearing of the material and ensure the quality of the machined surface.

Consider tool life: the choice of cutting parameters directly affects the life of the tool. When optimizing the cutting parameters, it is necessary to consider the cost of the tool and the processing efficiency comprehensively to seek an optimal balance point. Generally speaking, the lower cutting speed and feed can extend the tool life, but will reduce the processing efficiency; And too high cutting speed and feed will lead to rapid tool wear, increase the tool replacement frequency, but affect the processing efficiency and cost. Through test and data analysis, the combination of cutting parameters that can achieve higher machining efficiency under the premise of ensuring reasonable tool life is determined.