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Sample Name: Great Wall Automobile hood prototype
Material: ABS
Processing technology: CNC vowin.cn/en/News/news1251.html' target='_blank'>machining
Color: Natural color
Surface treatment: sanding, bonding assembly
Accuracy: 0.02MM
Applications: Auto parts
Sample type: function prototype
Period: 3 days

User requirements: According to the provided 3D model data and specific production requirements, strictly control the quality to ensure that the production parts are matched with the real car.

Project Analysis:
After receiving the drawings from the customer, our professional pre-analysts first check the 3D drawings and make the necessary disassembly, determine the assembly structure, and then select the appropriate materials and production processes. For this kind of functional automobile parts, the prototype parts are usually finished by CNC machining with ABS material. Because the viscosity of ABS material is better, the effect on strength is not significant when parts are split.

Processing
1. CNC machining
The tool on the CNC machining center moves on the material according to the path set by the program, and removes the excess part of the material to obtain the prototype of the hand model.

CNC machining
CNC machining

2. Hand polished
The CNC-machined hood prototype has a rough surface and a lot of burrs and knives. It needs to be sanded away to make it look smoother. It should be sanded with coarse sandpaper and then  with fine sandpaper. 

hand-polished

Finely sanded, sanded from coarse to fine sandpaper (400-1500) level grinding until the surface is smooth

3. Hand bonding
Hand-bonded assembly is the most critical step in the making of this part, and it is extremely demanding on the level of operation of our technical team. Due to the large number of parts to be split, after the CNC is completed, we need to glue the parts together by hand bonding. In the bonding process, we need skilled technicians to carefully bond the small parts, and continue to test until the bond is tight and firm, and try to make the gap required by the customer as small as possible to achieve the best match!

split-parts-1

split-parts-2
Split Parts

Prototype skilled worker
Prototype skilled worker carefully looks through the 3D drawings and preliminarily tests high matching degree of the whole model by hand-made rough binding

careful-gluing-of-all-components-for-perfection

careful-gluing-of-all-components-for-perfection
Perfect assembly: Careful gluing of all components for perfection

finishedproduct
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