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        不銹鋼加工難點有哪幾個方面?

        來源:http://www.boursomarket.com 日期:2020-01-09 發布人:admin

          不銹鋼加工難點主要有以下幾個方面:
          The difficulties in stainless steel processing mainly include the following aspects:
          1. 切削力大,切削溫度高
          1. Large cutting force and high cutting temperature
          該類型材料強度大,切削時切向應力大、塑性變形大,因而切削力大。此外材料導熱性極差,造成切削溫度升高,且高溫往往集中在刀具刃口附近的狹長區域內,從而加快了刀具的磨損。
          This type of material has high strength, large tangential stress and plastic deformation, so it has high cutting force. In addition, the poor thermal conductivity of the material results in the increase of cutting temperature, and the high temperature is often concentrated in the narrow and long area near the cutting edge, thus speeding up the wear of the tool.
          2. 加工硬化嚴重
          2. Severe work hardening
          奧氏體不銹鋼以及一些高溫合金不銹鋼均為奧氏體組織,切削時加工硬化傾向大,通常是普通碳素鋼的數倍,刀具在加工硬化區域內切削,使刀具壽命縮短。
          Austenitic stainless steel and some high-temperature alloy stainless steel are austenitic structure, and the working hardening tendency is large when cutting, which is usually several times of that of ordinary carbon steel. The tool cutting in the working hardening area shortens the tool life.
          3. 容易粘刀
          3. Easy to stick knife
          無論是奧氏體不銹鋼還是馬氏體不銹鋼均存在加工時切屑強韌、切削溫度很高的特點。當強韌的切屑流經前刀面時,將產生粘結、熔焊等粘刀現象,影響加工零件表面粗糙度。
        濟南通風管道
          Both austenitic stainless steel and martensitic stainless steel have the characteristics of chip strength, toughness and high cutting temperature. When the strong chips flow through the front cutter face, there will be adhesion, fusion welding and other phenomena, which will affect the surface roughness of machined parts.
          4. 刀具磨損加快
          4. Accelerated tool wear
          上述材料一般含高熔點元素、塑性大,切削溫度高,使刀具磨損加快,磨刀、換刀頻繁,從而影響了生產效率,提高了刀具使用成本。
          The above materials generally contain high melting point elements, large plasticity and high cutting temperature, which make the tool wear faster, and the tool grinding and changing are frequent, thus affecting the production efficiency and increasing the use cost of the tool.
          主要是降低切削線速度,進給。采用專門加工不銹鋼或者高溫合金的刀具,鉆孔攻絲更好內冷。
          It is mainly to reduce the cutting line speed and feed. Special cutting tools for stainless steel or superalloy are used, and internal cooling is best for drilling and tapping.
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