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, Logo Silk-screening
    Part Tolerance: ± 0.05 mm
    Quantity: 200 Units
    Lead Time: 20 Days

    The customer was an America based company bringing innovative ideas into reality by designing new products in home automation system and medical devices. This was the first time for customer to use Made in China to save manufacturing cost and time for their products that used to be made in Japan and South Korea. Prior to prototype manufacturing, the 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 after approval of prototype's appearance and fitting test.

CNC Aluminum Machining
Project Challenge:

Considering the part's thin wall thickness 1.0 mm and overall dimensions (L×W×H) 260×160×8 mm, keeping dimensions stability was the key challenge for this project since the probable risk of deformation occured during CNC milling. To ensure the consistently tight tolerance and reliable dimensions stability, two aluminum fixtures were milled to assist milling the low volume parts, one for milling the outer surface and another for milling the side holes for buttons and USB.

While for CNC milling the prototype, 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 closer than its prototype one as well as the much lower unit price and shorter production time.

CNC Aluminum Milled Parts
Sanded and  Anodized Silver Parts

CNC Milled Aluminum Parts. Total 15 milling cutters were used for the whole milling process including tapping M1.4, cutter diameters ranged from 8 mm to 0.4 mm, the cutting lines on outer surface were removed manually before anodizing finish.
Sanded and Anodized Silver Aluminum Parts. The anodizing finishing provided not only aesthetic feeling and corrosion resistance also the more adhesion to other coatings, different colors and glosses could be reached by this surface finishing.

Assembly testing

Logo and Text Silk-screened Parts. To ensure strong adhesion of the Logo and Text ink to the parts, hardening agent was mixed to the ink and then the Logo and Text silk-screened parts were heated to 100 centigrade for 10 minutes in the oven.
Assembly Testing with Middle Frame Part Made by ABS+PC Injection Molding. The free assembly testing service from us helped find the possibly potential defect in advance and customer could benefit it to save the time and cost.

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

What Customer Said to US:

"It is comfortable to work with you, all of us are happy for the awesome and impressive 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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