CNC Aluminum Turning Parts For Car Tire Cover

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Turning and Requirements

According to the workware material, precision requirements and machine tools, tools, fixtures and so on, reasonable selection of cutting dosing.

When grooving on shaft-type work items, it should be done in the prior to the Semoul cart to prevent deformation of the work parts.

When the shaft of a rough car with thread, it is generally usually after threading, and then the fine car without threaded parts.

When turning the step shaft, in order to ensure the rigidity of turning, it is generally usually the larger part of the car diameter, the larger part of the rear car diameter.

The end face of the work part should be leveled before drilling. If necessary, punch the center hole first. When drilling deep holes, guide holes are generally drilled first.

Dimensions with tolerance requirements should be processed as far as possible according to the tolerances between them.

For roughing processes that do not specify surface roughness requirements in the process procedure, the surface roughness Ra value after processing should not be greater than 0.025 mm.

The surface roughness Ra value before the ream should not be greater than 0.0125 mm.

Where the next process needs to be surface quenching, ultrasonic exploration or rolling processing of the work surface, the surface roughness of the processing in this process Ra value should be a small 0.0063 mm.

When the operation after this operation is unable to remove the burrs, the burrs produced by the processing of this operation are removed in this operation.

When turning a hole of 10 to 20mm, the diameter of the knife rod shall be 0.6 to 0.7 times the machined aperture, and when turning a hole greater than 20mm, a knife rod with a clamping head should generally be used.

Try the cut after hanging the wheel.

When using automatic synthesize, according to the machine tool adjustment card to adjust the relative position of the tool and work piece, after adjustment to carry out a trial cut, the first piece qualified before processing;

When turning on the stand, when the knife holder is adjusted, the beam must not be moved at will.

When the relevant surface of the work piece has position tolerance requirements, try to complete turning in a clip.

When turning cylindrical gear blanks, the hole and the reference face must be machined in a one-time clip. If necessary, the marking line should be erred out of the vehicle near the gear division circle of the end face.

In the process of processing large parts should always check whether the work piece is loose, in order to prevent the impact of processing quality or accidents.

When roughing and finishing on the same machine tool, roughing should generally loosen the starting parts, until it cools down and reloads.

During the cutting process, if the machine tool work parts system makes an abnormal sound or the roughness of the machining surface suddenly becomes bad, the knife should be immediately withdrawn from the stop check.

Rounding, cornering, groove depth, etc. during roughing should be increased or deepened according to the finishing balance to ensure that the finishing requirements are met.

The cornering, rounding, size and tolerance requirements not specified in the drawings and procedures shall be in accordance with ZBJ38001.

In mass production, the first inspection must be carried out before processing can continue.

During processing, the operator must self-test the work piece.

The operator should use the measuring device correctly, adjust the zero level first, and use the action to be light.

Work surfaces such as roughed mate faces, friction surfaces, and positioning surfaces are not allowed to print marks on them.

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