Low Volume Manufacturing Aluminum Parts
  • Low Volume Manufacturing Aluminum Parts
  • Project Overview:

    Low Volume Manufacturing Process: CNC Machining
    Material: Aluminum 6061-T6
    Surface Finishing: Tapping M1.4, Sanding, Anodizing Silver, Silk-screening
    Part Tolerance: ± 0.05 mm
    Quantity: 200 Units
    Lead Time: 20 Days

    The customer was an America based company specializing in the design and development of the products in home automation system, tablet and medical devices. This was the first time for customer to try Made In China to reduce time and cost for their product's prototyping and low volume manufacturing that were done in South Korean and Japan in the past. Before prototype manufacturing, customer visited our facility and had a meeting with us to discuss details and stress the importance of quality back and forth, then started low volume manufacturing of this aluminum parts after the approval of its prototype's appearance and fitting test.

CNC Aluminum Machining
Project Challenge:

The challenge of this project was the dimension stability during part machining since the part geometry and its thin wall thickness 1.0 mm compared to overall dimensions (L×W×H) 260×160×8 mm. To ensure consistently high tolerance and excellent dimension stability, two aluminum fixtures were made to assist the low volume production of this aluminum part by CNC machining, one for milling outer side, the other for milling small side holes for buttons and USB.

While for CNC prototyping this part, we used plaster instead of aluminum fixtures to reduce the prototyping cost and time, this was why the tolerance of low volume manufacturing parts was usually better than its prototype one as well as its much lower unit price and shorter unit manufacturing time.

CNC Aluminum Milled Parts
Sanded and  Anodized Silver Parts

CNC Milled Aluminum Parts. 15 milling cutters were used for the whole milling process including tapping M1.4, cutter diameters range from 8 mm to 0.4 mm, big cutters milling the general shape and then small cutters milling the exact features.
Sanded and Anodized Aluminum Parts. Before anodizing silver, all cutting lines on visual surface were removed by sanding and sandblasting. The anodizing finishing provided not only aesthetic feeling and also corrosion resistance.

Logo Silk-screened parts
Assembly testing

Logo and Text Silk-screened Parts. To ensure the Logo and Text's strong fastness to abrasion and corrosion, hardening agent was added to the ink and then the finished Logo and Text was heated to 100 centigrade for 10 minutes in oven.
Assembly Testing with Middle Frame Part made by ABS+PC Injection Molding. The free assembly testing service from us helped find the possible potential defect in advance and then offer the reasonable solution to save customer's time and cost.

Packaged Parts for Delivery. Before well packaging the parts for safe shipping, every part went through the strict quality inspection in tolerance, shape stability, assembly, appearance and finishing, the substandard ones were sorted out for repair or remaking, and inspection report was provided as per request.

What Customer Said to US:

"It is very comfortable to work with you, all of us are happy for the awesome job you did, this will help us to grow bigger and faster, and we will send you more works in future, please keep the consistent quality and service".

Packaged parts for delivery

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