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浅析激光熔覆高速钢刀具制备工艺过程

2023-02-16 10:33:57    
高速钢刀因具有较好的切削加工性而成为机械加工行业中广泛使用的一种刀具,但在加工一些硬度较高的材料时,切削温度常常很高(约1000℃左右),而高速钢退火温度一般为860~880℃左右,因此会导致硬度下降而不能满足加工要求。在切削加工过程中,刀具要承受冲击、振动负荷,同时还要受到工件和切屑的强烈摩擦作用,导致高速钢刀具在使用过程中经常出现磨损、卷刃、崩刃或折断等现象,影响加工精度和生产效率,缩短了刀具的使用寿命,同时增加了成产成本。

浅析激光熔覆高速钢刀具制备工艺过程

技术是近几十年来迅速发展起来的一种材料表面改性技术,具有对工作环境要求低、加工后工件变形小、可获得高硬度的表面改性层、适合局部区域和难以接近区域的加工等许多常规技术达不到的优良特性,因此,正被越来越多的研究机构和企业所重视。通过duidaojubiaomianrongfuyicengjinshutaocicenglaigaishanchangguidaojudexingnengyijingdedaoleyidingchengdudeyingyong。

浅析激光熔覆高速钢刀具制备工艺过程

目前常用的高速钢刀具一般是整体式,当刃带磨损后就只能报废,因此刀具的材料浪费较且制造成本高。采用rongfujishuzhixuzaidaojuqierenbuweitongguoyusherongfucailiaolaizengqiangdaojudeqiexuerendai,yinrongfumianjixiao,kejieshengguijinshucailiao,congerjiangdilezhizaochengben。tongshirongfuhoudedaojuqiexuerenbuweijuyoujiaogaodeqiangdu、yingduhenaimoxingeryoujianyoulejitideqiangrenxing,jiaohaodijiejuelegaosugangdaojuyingduheqiangrenxingdemaodun,tigaolegaosugangdaojudeqiexuexingneng。

浅析激光熔覆高速钢刀具制备工艺过程

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浅析激光熔覆高速钢刀具制备工艺过程

daojubiaomianqianghuachulishitigaodaojunaimoxingjiqishiyongshoumingdezhongyaotujingzhiyi。jiangjiguangrongfujishudeyoushiheqiexuejiagongduigaosudaojudeshiyongyaoqiujieheqilai,keshigaosugangdaojuyongyounaimo、naire、naifushi、kanggaowenyanghuajijiaogaohongyingxingdengyouliangdeqiexuejiagongxingneng。ciwaizaihuodegaoxingnengqiexuerendetongshiqiejianyoujitideqiangrenxing,jiagongzhonggenghaodibaohuledaojudeqiexueren,youxiaodijiejuedelegaosugangdaojuyingduherenxingdemaodun。zaijiguangrongfugaosugangdaojudezhibeizhongxiaohaodefenmocailiaoshao,jiangdiguizhongxiyoujinshucailiaodexuqiu,fuhejienenghuanbaodeyaoqiu,qiegongyiguochengjiandan、suoxushebeishao,bianyushixianzidonghua。suizhexianzaiqiexuejishudebuduanfazhan,keyiyujianjiguangrongfujishujianghuiduigaosugangdaojudexingnenggaijinchanshengzhongyaoyingxiang。

浅析激光熔覆高速钢刀具制备工艺过程

超高速激光熔覆由德国Fraunhofer ILT 发明,被誉为当前可替代电镀技术最具竞争力的工艺。 ACunity作为Fraunhofer ILT的孵化企业,率先将超高速激光熔覆技术引进中国市场,与Fraunhofer ILT紧密合作对超高速激光熔覆进行技术产业化升级,不断完善工艺水平,提升其核心部件的功能性,如送粉喷嘴的耐用性、送粉精度、高送粉量、粉末利用率等。由于涂层表面质量明显高于普通激光熔覆,只需要简单打磨或抛光即可应用,因此材料浪费、后续加工量都大大减少,在成本、效率、及对零件的热影响上超高速激光熔覆都具有不可替代的应用优势。

 
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