industrial parts processing programme:

The processing scheme of industrial parts should be comprehensively formulated according to the structure, material, precision requirements and production batch of parts. The following are examples and key points of some common types of processing schemes:

1. Shaft Parts Processing Scheme

Example: Take a drive shaft of 40Cr material as an example

Blanking: use a sawing machine to cut round steel into the required length (such as 60 x 230mm).

Turning:

Rough car excircle and end face, remove most of the allowance.

Semi-fine turning to ensure dimensional accuracy and surface roughness.

Key parts of the finishing car, such as steps, keyways, etc.

Heat treatment: quenching and tempering, hardness reaches HB220-240.

Grinding: Grind the outer circle with an outer circle grinder to improve accuracy and surface quality.

Key points:

When turning, pay attention to tool selection and cutting parameters to ensure coaxiality and surface quality.

Before grinding, the center hole shall be repaired to ensure stable clamping.

Processing Scheme of 2. Disc Parts

Example: A disc part made of 45 steel

Forging: forging blank, preliminary forming.

Turning:

Rough car outer circle, end face and inner hole.

Semi-finishing car, adjust the size and shape accuracy.

Finisher, guaranteed final dimensions and surface roughness.

Milling: milling arc groove and other complex shapes.

Drilling: Drilling through holes, reaming or boring if necessary.

Key points:

When milling arc groove, it is necessary to pay attention to the tool path and cutting parameters to avoid interference.

Check the position accuracy and verticality of the hole after drilling.

3. sheet parts processing scheme

Example: Take 3-5mm thick stainless steel sheet part as an example

Clamping: make tooling plate, press the thin plate with pressure plate to prevent deformation.

Milling:

Roughing the contour to remove unwanted material.

Semi-finish milling and finish milling to ensure dimensional accuracy and surface quality.

For thin plates with complex structures, step-by-step clamping and processing can be used.

Wire cutting: For ultra-thin plates (e. g. 0.05-0.15mm) or complex contours, wire cutting can be used.

Key points:

The rigidity of the sheet shall be considered during clamping to avoid clamping deformation.

Wire cutting processing needs to pay attention to the position and processing sequence of the wire hole.

4. multi-blade parts processing scheme

Example: Multi-blade part made of aluminum alloy

Turning: Machining simple structures such as blade shafts to ensure coaxiality and dimensional accuracy.

Milling:

Rough mill the blade contour to remove most of the margin.

Semi-finish milling and finish milling, using three-axis or five-axis linkage processing, to ensure the accuracy of the blade surface.

For complex parts such as the trailing edge of the blade, 3D ISO machining combined with 5X remachining strategy can be used to avoid tool interference.

Heat treatment: according to the material and performance requirements for the corresponding treatment.

Key points:

Five-axis machining requires attention to tool path planning and machine tool motion accuracy.

Cutting parameters should be controlled during finishing to avoid blade deformation.

5. Box Parts Processing Scheme

Example: Take the box part of HT200 material as an example

Casting: casting blank, to ensure the shape and internal structure of the box.

Planing or milling: Roughing and semi-finishing the planes and holes of the box.

Boring: Boring the hole in the box to ensure the accuracy and position accuracy of the hole.

磨削：对关键平面或孔进行磨削，提高表面质量。

Key points:

铸造毛坯需进行时效处理，减少内应力。

镗削时需注意刀具的刚性和冷却液的使用。

总结

工业用零部件加工方案需综合考虑零件的结构特点、材料性能、精度要求、生产批量及企业现有设备条件等因素。在制定方案时，需合理选择加工方法和刀具，优化加工参数和刀具路径，同时注意装夹方式和热处理工艺，以确保加工质量和效率。对于复杂零件，可采用多工序、多设备协同加工的方式，必要时可借助CAM软件进行刀具路径规划和仿真验证。