日韩亚洲国产激情一区二区_久久亚洲成a人片_亚洲人成高清无码在线 _国产高清欧美亚洲-视频国产欧美一区二区精品-精品久久国产一区二区-色综合久久精品国产-午

News and information

News

Notice for Hob Coating

2022-03-11 09:41:29 jiangxingTools 2409

Notice for Hob Coating

As hob coating are done at high temperature under high vacuum, to optimize PVD coatings performance,please collect your hobbing tools with following information.

1, steel grade and speficiation for gear hobs with HSS M2, M35, ASP30, S390, S290, MC90

2, tempering temperature and hardness of hobs

3, highlight and specify the coated surfaces

4, notice the coating company if the dimension tolerance is less than 5um.

5, specify the hob application, so coating company can recommend a proper coating for your gear hobs.