亚洲精品鲁一鲁一区二区三区-最爽无遮挡行房视频-强壮的公次次弄得我高潮A片日本-精品人妻无码一区二区三区换脸-中文字幕亚韩-亚洲国产精品一区二区第一页-丰满岳乱妇一区二区三区-大陆极品少妇内射AAAAAA-国产乱人伦AV麻豆网-AV国産精品毛片一区二区三区-午夜精品视频在线无码-免费精品一区二区三区A片在线-在线天堂无限次观看,久久久久亚洲精品,欧美日韩性生活片,麻豆天美精东蜜桃传,韩日一级黄色片,高辣文黄暴糙汉文文,亚州一射区,狠狠综合久久综合88亚洲,免费看污又色又爽又黄的小说,在线久色,无码一区二区三区蜜桃大,三级大片,免费无码又爽又刺激片涩涩直播,久艾草久久综合精品无码国,国产色情无码永久免费软件,肥伴老妇水多乳大小说,久久国产色情爽翻爽翻,怡春院在线视频,国产精品久久久爽爽爽麻豆色哟哟 ,久久久WWW成人免费精品,在线观看私密高清无码,亚洲午夜无码伦在线观看,亚洲毛片,五月天国产成人在线,天美精品国产自产在线,色熟妇人妻久久中文字幕,日韩精品无码久久久久成人,日本欧美在线高清,人妻在卧室被老板疯狂进入国产,人妖欧美一区二区三区四区,日本免费理论片

　　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。

　　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.