With the development of science and technology, and social wants of the diverse, much more competitive products, replacement cycle is getting shorter. The requirement of not only the needs of the industry as quickly as feasible to design and style new goods, but also in the shortest feasible time to create prototypes to conduct efficiency testing and modification of the final forming shape merchandise. In conventional manufacturing systems, requires a lot of mold design and style, manufacture and commissioning function, high price, extended period, can not meet the fast adjustments in the industry. In order to boost R & D and production speed, rapidly and accurately to produce higher-quality, low-price molds and items, can make quick response to industry modifications, individuals made a lot of study and exploration operate. With the falling costs of industrial lasers and industrial laser processing technologies become more sophisticated, to mold manufacturing and item production method has brought important adjustments. This paper introduces the industrial processing lasers, and laser in mold creating, mold surface laser hardening and option, laser die repair, mold and other elements of laser cleaning are introduced and analyzed.
Industrial processing lasers Present, industrial lasers employed in laser processing are two significant categories: strong-state lasers and gas lasers. Amongst them, solid-state laser with Nd: YAG laser as the representative and gas lasers CO 2 Laser as the representative. With laser technology, now individuals are beginning to use some processing energy applications high-energy fiber lasers and semiconductor lasers.
1) Nd: YAG laser Nd: YAG laser material for the solid-state laser perform Nd: YAG rod, the laser wavelength of 1.06 m. As the type of low conversion efficiency of laser lasers, YAG rod by each volume and thermal conductivity limits, the laser output typical power is not higher. Nevertheless, Nd: YAG laser Q switching by compression of laser output pulse width, pulse mode perform in order to receive a high peak power (108W), applies to need higher peak power of laser processing applications its yet another significant benefit is transmitted through optical fiber, optical transmission to avoid the complexity of the design and style of production, in the three-dimensional processing is extremely valuable. In addition, the third harmonic technique can also be converted to the laser wavelength of 355nm (ultraviolet), laser technologies has been applied to three-dimensional type.
two) CO two Laser CO two Laser material for the CO laser perform 2 Mixed gas, the primary application of laser wavelength of 10.six m. As the kind of higher laser conversion efficiency of laser, whilst the heat generated by laser function can be rapidly passed by convection or diffusion to the laser achieve area, the typical power of the laser output can be a very high level (ten,000 watts or much more) to meet high-energy laser processing requirements.
Home and abroad for higher-energy CO laser processing 2 Lasers, mostly cross-flow, axial flow laser. cross-flow lasers: transverse flow laser beam top quality is not excellent for multi-mode output, primarily for heat remedy and welding. China now can produce all sorts of higher-power transverse flow CO two Laser series, which can meet the domestic demand for laser heat therapy and welding. laser axial: axial laser beam top quality is much better, for the basic mode or quasi-fundamental mode output, primarily for Laser Cutting And welding, laser cutting equipment industry in China mainly occupied by foreign axial flow laser. Although the number of laser manufacturers in foreign axial laser on a lot of operate to do, but demands to import the major components, costs drop substantially hard, with low coverage.
Technologies Improvement Co., Ltd. Wuhan bleomycin developed a swirl CO 2 Laser, shown in Figure 1, to a new way of rotating gas flow to swirl CO two Laser also has an axial CO 2 Laser beam top quality and transverse flow CO 2 Laser low price and small size advantages. The promotion of industrial application of laser processing, laser processing business in China will be the development and play a optimistic function in promoting universal access.
Figure 1. Wuhan bleomycin Technologies Development Co., Ltd.
500W swirl CO 2 Laser Mold Laser Manufacturing 1) indirectly into the model of laser technology
three-dimensional optical kind (Stereo LithographyApparatus, referred to as SLA) procedure is a layer by layer using ultraviolet laser beam scanning method of curing rubber components of the formation of three-dimensional entity. In 1986 the company launched the commercialization of American 3DSystems prototype SLA-1. SLA technologies to attain the highest precision .05mm. thin-layer lamination manufacturing (LaminatedObjectManufacturing, called LOM) process utilizing sheet material, such as paper, plastic film, etc., by the United States Helisys developed in 1986. By repeated CO two Laser cutting and pasting material, physical artifacts are layered manufacturing. LOM method is characterized by large components for manufacturing, the accuracy of .1mm. selective laser sintering (SelectiveLaserSintering, referred to as SLS) procedure is the use of powdered material formed by the University of Texas at Austin in 1989 and developed through the use of high-intensity CO 2 Laser scanning layer by layer selectively formed sintered powder supplies, three-dimensional parts, SLS technology’s largest advantage is the wider choice.
Of the three laser fast prototyping technology as the improvement of a lengthy time, technology is fairly mature, at residence and abroad have been far more widely utilized. Nevertheless, the formation of 3-dimensional parts above approaches are not directly used as a mold, the want for comply with-up, so I named the indirect laser technology into the mold. The major treatment strategies are: treated as forming component quickly die. LOM production of direct instead of paper molding sand by the surface Casting Wood-mode or paper with a LOM mold created straight by the surface treatment for low melting point alloy mold, injection mold or lost wax Casting Forming in the wax mold. SLS components produced by the infiltration of copper, the metal molds employed for. utilizing speedy prototyping parts for the mother mold casting silicone rubber, epoxy, polyurethane and other components soft mold. with fast hard tooling for manufacturing of formed parts. 1 is the direct production of paper-based LOM mold by metal arc spraying and polishing the surface after the study into a metal mold the other is the lining of metal mold surface blindly memorizing. The challenging mold can be utilised for sand Casting , EPC pressure kind production, injection molding, and basic non-tensile steel mold.
Indirectly with the laser technology into a production mold tooling, complicated machinery not only to steer clear of cutting, but also to make sure the accuracy of mold, mold can be tremendously lowered, saving on tooling fees,