Aluminum Alloy Flange Numerical Control Process

Aluminum alloy flange, made of 7075 material, features light-weight, strong mechanical strength and is workable for numerical control process.

Based on specific requirements from customers, flange reaches 120mm outer diameter and 60mm height. One side of flange is connected to output shaft of motor through negative thread and the other side is installed in the groove and then installed with rubber ring. The product can be moved around via friction generated between rubber ring and the product.

The flange used as a part installed on a detector for gauging dynamic balance of the wheel of bicycle. The dynamic balance detector precisely measure the wheels if they occasionally go through eccentric swinging and are deformed. High speed of wheel is actuated by servo motor. Deviation in eccentric swinging of dynamic balance can be measured by photoelectric sensing instrument and relevant datum are recorded in the computer. Inspection equipment are most made of aluminum alloy material characterized by light-weight and strong strength.

Processing procedure is strictly controlled. First of all, CNC is required to process the shape and when data reaches standard, CNC processes hollow part. When CNC works, it is critical to choose a proper milling cutter. Coated milling cutter features sharp and wear resistance. In the course of cutting, factors such as feed and cutting depth affects quality and form and location tolerance. In the process of processing aluminum alloy, deformation appeared in parts is a knotty problem. Whether processing procedure is correct or not is a significant factor affecting product process. A technology, called surface sand blasting, can remove de-burring left. During the sand blasting, pressure for air under compressed condition shall not be higher, which the reasonable range is 0.5-0.6MP. Sand blasts too light if air pressure is high and parts is inclined to be deformed if air pressure is high. Hard anodized ensure the normal level of Rockwell hardness for metal surface.

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