The application of end mills in the Processing of kitchen Appliance parts

End mills are widely used in the processing of kitchen appliance parts. The selection of their cutting parameters needs to comprehensively consider the tool structure, workpiece material and processing requirements. The following is a specific analysis:

The compatibility of tool structure and material

Helix Angle design: The helix Angle of end mills is usually divided into two specifications: 30° and 45°. When processing high-hardness materials such as stainless steel, a 45° helix Angle can enhance the stability of cutting. While low-hardness materials such as aluminum alloys are suitable for a 30° helix Angle to achieve large feed rate processing.

Tooth number selection strategy: In the rough machining stage, coarse-toothed end mills are preferred, as their chip-holding groove design can effectively remove chips. In the finishing stage, fine-toothed end mills are used, and the surface finishing quality is improved by increasing the number of cutting teeth.

Tool material matching: For the commonly used aluminum alloy and stainless steel materials in kitchen appliances, high-speed steel end mills are suitable for medium and small batch production, while hard alloy end mills are more suitable for large-scale and high-efficiency processing scenarios.

Cutting parameter optimization scheme

Cutting speed control: When processing aluminum alloys, the cutting speed can be set at 150-200m/min. When processing stainless steel, it needs to be reduced to 50-100m/min. By adjusting the speed, the tool life and processing efficiency can be balanced.

Feed rate matching: For aluminum alloy processing, the feed rate is recommended to be 0.1-0.2mm per tooth, while for stainless steel processing, it should be controlled at 0.05-0.1mm per tooth. Parameter adjustment should be combined with the tool diameter and the material characteristics of the workpiece.

Cutting depth management: In the rough machining stage, the single cutting depth is recommended not to exceed 50% of the tool diameter. In the finish machining stage, it should be controlled within the margin range of 0.05-0.1mm. Dimensional accuracy is guaranteed through a layer-by-layer processing strategy.

Optimization path of processing technology

Vibration suppression measures: When tool vibration occurs, the cutting speed and feed rate should be reduced first (the reduction is recommended to be within 40%). If the vibration persists, the cutting depth should be reduced. If necessary, the tool overhang can be adjusted or a support device can be added.

Cooling and lubrication scheme: Compressed air is recommended for aluminum alloy processing, while extreme pressure cutting fluid should be used for stainless steel processing. By optimizing the cooling method, the cutting temperature can be reduced and tool wear can be minimized.

Improvement of the clamping system: For large-diameter end mills, a tool holder with a flattened notch can be used in combination with a side locking device. Regularly check the wear of the tool holder (it is recommended to inspect once every 500 pieces processed) to ensure the rigidity of the clamping system.