Precision CNC Lathe Machining Aluminium Parts

① For thin-walled bushing parts, if a three-jaw self-centering chuck or collet is used to clamp radially, once it is loosened after processing

Open, the workpiece must be deformed. At this time, the method of compressing the axial end face with better rigidity should be used. Locate with the inner hole of the part, make a self-made threaded mandrel, insert it into the inner hole of the part, press the end face with a cover plate and tighten it with a nut. Clamping deformation can be avoided when machining the outer circle, so as to obtain satisfactory machining accuracy.

② When processing thin-walled and thin-plate workpieces, it is best to use vacuum suction cups to obtain evenly distributed clamping force, and then process with a small cutting amount, which can well prevent workpiece deformation. In addition, the packing method can also be used. In order to increase the process rigidity of the thin-walled workpiece, the inside of the workpiece can be filled with medium to reduce the deformation of the workpiece during clamping and cutting. For example, pour urea melt containing 3% to 6% potassium nitrate into the workpiece. After processing, immerse the workpiece in water or alcohol to dissolve the filling and pour it out.

During high-speed cutting, due to the large machining allowance and intermittent cutting, vibrations are often generated during the milling process, which affects the machining accuracy and surface roughness. Therefore, the CNC high-speed cutting process can generally be divided into: rough machining, half finishing machining, corner clearing machining, and finishing machining. For parts with high precision requirements, sometimes it is necessary to perform secondary semi-finishing and then finish machining. After rough machining, the parts can be cooled naturally to eliminate the internal stress generated by rough machining and reduce deformation. The margin left after rough machining should be greater than the amount of deformation, generally 1 to 2 mm. When finishing, the surface of the finished part should maintain a uniform machining allowance, generally 0.2~0.5mm is appropriate, so that the tool is in a stable state during the machining process, which can greatly reduce cutting deformation, obtain good surface processing quality, and ensure The precision of the product.

Processing

 

CNC machining

CNC lathe processing

 

Overview

 

CNC lathe processing	10 CNC lathes
Processing type	Turning, milling, drilling, other machining services
CNC lathe maximum processing size	Diameter 800mm, length 1500mm
Industry	Aviation industry, machinery industry, robot industry, new energy industry, etc.

 

1. Do you have a quality control department?

Yes, we have 6 QC staff

2. Are there all technicians in your company?

More than 60 senior engineers and senior technicians

3. What machines are in your factory?

10 sets of CNC vertical machining centers (three-axis, four-axis), 5 sets of CNC horizontal machining centers, 10 sets of CNC lathes, large-scale surface water mills, internal and external round mills, gantry milling machines, and complete inspection equipment (height gauge, hardness meter, two-dimensional, three-dimensional, projector, etc.)

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