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Analysis of the Difficulties of Japanese Semiconductor High-end
Precision Carriers in CNC CNC machining

 


 

Client: Japanese

 

Product requirements: 5mm aluminum plate flatness needs to reach 0.02m

Quantity: 3 pieces

Material: Aluminum

CNC machining method: CNC CNC machining + surface grinding

Delivery time: 5 days

 

 

 

 

 

 

 

 

 

 

The 5MM and 3MM thick aluminum plates are hollowed out in the middle, and the flatness is required to be controlled below 0.02MM. The difficulty in production is relatively high. The following are some of the problems that we share in the CNC machining of a Japanese sample order.

 

 

 

 

Analysis of the Difficulties of Japanese Semiconductor High-end Precision Carriers in CNC Machining 

 

 

 

 

There are many factors to consider if the flatness of the 5MM thick aluminum plate can be controlled within 0.02MM. The first consideration is the material itself, because the material itself has stress, and the tolerance is measured on the machine when the stress is released after CNC machining. If it is within 0.02MM, it will deform if it is taken down and placed there, resulting in a tolerance of 1MM or more. Therefore, when we select materials, we must choose materials that have undergone stress relief treatment. Generally speaking, we will consider T651, followed by process planning. That is, the CNC machining sequence. We will first finish the center hole first, then remove the stress after CNC machining and then go to the surface grinder for CNC machining, and then finish the size that all other grinders have not machined. In this way, the flatness can generally be controlled. Within 0.03MM, we tried this sample three times, and the final result flatness can be controlled.The customer placed an order on November 20, and we completed the confirmation of the first sample within a week.


 

 

 

 

 

 

 

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