Designing of the Working Area of Ultraprecision Machining with High-accuracy and Surface Quality

摘要

In the leading industrial countries of the world a new culture of production has developed based on automation, computer science, and microelectronics. It is called ultraprecision production, sub-micron or nano-technology. Its specific characteristics are exceeding the magic 1 um accuracy limit and the generation of flat surfaces of a surface roughness less than R_a≤0.08 /μm. Production of high-precision tools and equipment puts special requirements of people, working area and production tools. For lack of space, this paper, will present some of the more important ergonomical and technical aspects of planning the working place. Nowadays the industries listed in the introduction cannot do without what is called ultraprecision technologies. Such strict roughness specifications in themselves mean extremely flat and polished surfaces which are today common for metallic mirrors,optical lenses,for the cylinders of copiers , for data storage disks, etc. The working place established is also suitable for the accomplishing such tasks. The machining of steel, mostly hardened steel, parts (e.g. hydraulic elements, high precision bearings made to order) by means of cubic borone nitrid tools is a new area of application. Designers and technologists must become familiar with the new high technology and the possibilities it offers and must introduce it in the production in order to fulfil the requirements. One of the possible tools of its correct introduction is ergonomy.