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Shenzhen prototype factory briefly describes the four major process knowledge of prototype model production

by:Tuowei     2019-09-23
2014-07- 10 11: 53

Shenzhen prototype factory briefly describes the four major process knowledge of prototype model production 1. CNC computer gong ( Cncprocess Centre) : CNC is a computer CNC machine tool that is mined by a whole version according to the numbered program. CNC uses the Mastercam system, which is mainly used to control the CNC knife path. CNC milling machine is specially used to process some Square, irregular objects, while the lathe is a circular object. CNC can process some larger pieces. The maximum can reach 1800*900*600. It is cheaper than SLA and meets many kinds of prototypes. Currently the most widely used in China. The main materials are ABS, PC, PVC, and the metal is mainly aluminum and copper. CNC machining can process product samples with relatively high accuracy. The application materials mainly include ABS, PC, MMA, PP, aluminum, copper, etc, electrical wood and aluminum alloy that are often used in making fixtures and other products; Advantages of CNC prototype: good toughness, high tension, low cost, and wide range of materials. 2. Complex model (Vacuum perfusion) : Use the original model to make a silicone mold in a vacuum state, and use PU material for pouring in a vacuum state, thus cloning the same as the original version, which is higher than the original model, copy with good strength and hardness. If the customer requires several or dozens of sets, it is suitable for this method, which greatly reduces the cost. The product model produced by vacuum re-molding has a certain ratio of shrinkage, and the sample cost of vacuum copying products will generally be lower than that of CNC, that is, the price of CNC machining multiple sets of samples is lower than that of CNC machining one set before vacuum molding ( Except for the special requirements for the sample material of the compound mold); The composite materials are: ordinary Pu: brittle and tough; Transparent Pu: good raw materials, but the price is the most expensive; Rubber PU; 8400 soft glue. There can be two uses through the technology of vacuum compound die: )Carry out sample production of small batch products; B)Change the material; The model carved from gypsum sludge can be changed through multiple molds, to PU or POLY material that is easy to follow-up processing, or to change ABS material to material with special requirements ( Such as: transparent, high temperature resistant, high strength, or rubber properties, etc). 3. SLA laser forming (Slalasermoxing):(More foreign use) According to the UV light controlled by the computer, the gradual layer scanning is superimposed and solidified according to the program written in advance, which is closest to the design drawing file, with high accuracy and fast single room speed. SLA saves labor and is easy to program, but the machine is expensive, the cost is high, and the material is brittle and tough. The efficiency of one SLA is equivalent to the efficiency of three CNC machines. SLA has more advantages than CNC in making small objects. Large pieces are the opposite. The SLA uses Magic (Programming software). The room where the SLA machine is placed is specially equipped with a dehumidifier to control the indoor temperature. SLA can process artifacts with complex or dense structures, with high SLA accuracy and fast speed. Error can be controlled at ±0. 05mm. 4. After years of accumulation of surface treatment, we have a very rich and comprehensive process for the treatment of prototypes, including manual treatment and painting ( Light, matte, metal paint, rubber paint, Pearl Paint, etc)Silk Screen, sandblasting, polishing and electroplating (Vacuum plating, water plating)Hot stamping, etc. Manual processing: Polish and assemble the samples made, and make the parts into a finished product. Fuel Injection (Spraypaint) : According to the customer's requirements, our company is a dust-free oil spraying House, and the oil is also the best. Silk screen printing (Silk-Screen): Print or pattern on the prototype sample. Pad printing: print words or patterns on uneven surfaces of the prototype. Thunder carving (Laserengrave) : In order to transmit light, two layers of paint will be sprayed on a transparent piece, one layer will be knocked off and one layer will be exposed. Electroplating (Plating) : In order for the product to be more eye-catching, the color of the product coated with silver, the sample must be very smooth and free of impurities, and then soaked in the potion (With water plating and vacuum plating), External hair. Water plating features: it is not easy to scratch, not easy to fade, not bright, and the required materials are high temperature resistant. The vacuum plating is bright and easy to scratch and fade. Oxidation (Anodizing)(Anode treatment) : Oxidation reaction occurs on the surface of aluminum, forming a layer of film, not easy to scratch, not easy to corrosion. Drawing: pull out a thin mark on the surface of aluminum, and the texture is better. Highlights (High-Lighteffect) : Machining a circle with high-speed CNC on the sample to reveal the true color of aluminum. Hot stamping: affix the product color of gold or silver to some details of the product. (This process is rarely used now) UV: spray a layer of transparent oil on the surface of the sample, dry it with UV light, the product is brighter, and it is not easy to scratch. Clay Sculpture (Carvedmud) : For toy dolls, the appearance is not regular. It can't be processed by the machine, so it is carved by hand with a piece of oil mud. Relief (Relief) : Lay a layer of sludge on a board and carve out the desired shape. It looks like a solid object. Lathe (Lathe): Process some small parts. Milling Machine (Millingmachine) : Milling CNC samples that cannot be processed or need to be modified. Sandblasting (Sandblasting) : There are a lot of residual plastic on the sample of the computer Gong, which is very troublesome to handle manually.


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