Surface treatment technology to extend the service life of mold – mold, Technology – Hardware Industry
The past 10 years, the manufacturing market has undergone tremendous changes in the product to market quickly has become a manufacturer of market opportunities to grasp the importance of security. Therefore, the product of the rapid development of technology will be to win the key to the 21st Century manufacturing market.
Rapid prototyping technology (hereinafter referred to as RP) is a combination of computer-aided design, precision machining, CNC laser technology and materials science as one of the emerging technology, which uses discrete accumulation principle, the object of the CAD model of the design into physical sample. As the RP technology uses the three-dimensional shape into a planar layered manufacturing principle, the complexity of objects is not sensitive to the more complex the object the more it can shows its superiority.
To RP for the technical support of fast Mold Manufacturing RT (RapidTooling) also is to shorten the development cycle of new products early to market appropriate Pin LO's, tailored to customer intent of the variety and small batch products developed new manufacturing technology. As the product development and manufacturing technology, and the constant pursuit of new, strange, changing market consumer-oriented, making products (especially consumer goods) and increasingly shorter life cycles have become an indisputable fact. For example, automobiles, home appliances, computer products, with fast Mold Mold manufacturing technology to produce the traditional mold manufacturing period of 1 / 3 to 1 / 10, the production cost is only 1 / 3 to 1 / 5. Therefore, the industrial countries had RP / RT as a shortened product development cycle time and die making important research topic in one of the core technology and manufacturing, China has also started research and development of rapid manufacturing applications work.
RPM-based method of rapid tooling Mold is an indispensable means the manufacturing sector, which mostly use a mold, injection mold, stamping mold, and forging mold. Traditional production of molds is: wood or metal blank for turning, milling, planing, drilling, grinding, corrosion and other processing, to obtain the required shape and size of the mold. This method is time-consuming and expensive, especially automobiles, motorcycles and home appliances need some large molds, often cost several hundred thousand dollars or more, the production cycle for months or even a year. The RT based on RPM technology, directly or indirectly making mold, mold manufacturing time is shortened and costs are greatly reduced.
1. With a rapid prototyping machine direct production mold as some artifacts produced by rapid prototyping machines have better mechanical strength and stability, so parts can be directly used for rapid prototyping mold. For example, Stratasys rapid prototyping machine company TITAN PPSF workpiece as hard as hardwood, can withstand 300 high temperature, the surface treatment (such as spray varnish, polymer or metal) can be used after the Sand Casting Wood-mode, low melting point alloy Casting mold , Trial use of injection mold and pressure-type casting. When used as a sand-shaped wooden mold casting, it can be used to repeat the production of 50 ~ 100 sand. As a wax mold Molding , It can be used to repeat the injection of more than 100 wax models. FDM rapid prototyping machine using ABS workpiece can be selectively integrated package thermoplastic binder metal powder to form the semi-die, sintered metal powder and the second infiltration in the pores of metal (aluminum) to make into a metal mold.
2. Using rapid prototype parts for master mode, copy the soft mold (Softtooling) with rapid prototyping parts for the mother die, can cast wax, silicone rubber, epoxy, polyurethane and other soft materials, constitutes a soft mold, or before pouring silicone rubber, epoxy resin model (that is, the pressure of wax type), and then pouring wax. Among them, the wax mold for casting, but silicon Rubber mold , Epoxy molds can be used as trial with low melting point alloy injection molding or casting mold.
3. Using rapid prototype parts for master mode, copy the hard mold (Irontooling) with rapid prototyping parts for the mother mold, or mold, according to the soft copy can be cast (or coated) gypsum, ceramic, metal matrix composite materials , metal, form a hard mold (such as various casting mold, injection mold, wax model of the pressure type, tensile modulus), so mass production of plastic parts or metal parts. This mold has good machining performance, partial cutting, in order to obtain higher accuracy, or inlays embedded block, cooling system, pouring system. Cast metal matrix composite materials with a wax mold into the pressure-type, the tool life up to 1000 to 10000.
4. With rapid prototyping systems to produce electrical pulses using electrodes with rapid prototyping machine items for the mother.
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