机械外文翻译--近净成形技术.doc

The closely clean forming technique The closely clean forming technique is after the part take shape, the worker only needing a few processes or not in addition, and the mechanical forming technique constructing the part of available works. Having transformed Mao Pis forming technique of tradition on it is to build at the new material and the new sources of energy and the mechanical and electrical integration and precise many branches of learning high and new technology achievements foundation such as mould technology , computer technology , automation technology , numeric analysis and simulation technique etc , cause that makes roughly takes shape the forming technique that becomes the high quality and high efficiency , high precision and the gently quantification and the low cost . The rough degree on surface of bit precision reconciliation that it makes that the shaping machinery constructs the size precision that piece possesses the accurate appearance and high and the shape. Specialty domains such as this technology including the closely clean shape casts shaping , accurately plasticity is shaping , accurately connection , precisely heat treatment is modified and superficial modified and high precision mould etc , and is new technology and new clothes fully and newly material as well as all new the synthetically integration technology of technology achievements . Since following the 70s , a large number of funds and manpower has been dive into with the closely clean forming technique of industry bound pair in each industry advanced country government , and making this technology get very fast the development , because the protruding contribution to the competition ability in market of this technology , the quilt is American and Japan government and enterprise list the key technology that the 90s influenced the competition ability , his output value increase range also far mores than the manufacturing industry output value increases the range . Major developm