Wednesday, October 24, 2007

磨削不锈钢时怎样选择砂轮? www.tool-tool.com

Bewise Inc. www.tool-tool.com Reference source from the internet.

磨料:白刚玉具有较好的切削性能和自锐性,适于磨削马氏体及马氏体+铁素体不锈钢;单晶刚玉磨料适用于磨削奥氏体和奥氏体+铁素体不锈钢;微晶刚玉磨料是 由许多微小的晶体组成的,强度高、韧性和自锐性好,其自锐的特点是沿微晶的缝隙碎裂,从而获得微刃性和微刃等高性,可以减少烧伤、拉毛等现象,并可以降低 磨削表面粗糙度,适于磨削各种不锈钢;立方氮化硼磨料的硬度很高,热稳定性好,化学惰性高,在1300℃~1500℃不氧化,磨粒的刃尖不易变钝,产生的 磨削热也少,适用于磨削各种不锈钢。为了减少粘附现象,也可采用碳化硅和人造金刚石为磨料的砂轮。

粒度:磨削不锈钢时,一般以采用36号、46号、60号中等粒度的砂轮为宜,其中粗磨时,采用36号、46号粒度,精磨用60号粒度。为了同时适用于粗磨和精磨,则采用46号或60号粒度。

结合剂:磨削不锈钢要求砂轮具有较高的强度,以便承受较大的冲击载荷。陶瓷结合剂耐热、抗腐蚀,用它制成的砂轮能很好地保持切削性能,不怕潮湿,且有多孔 性,适合于制作磨削不锈钢砂轮的结合剂。磨削耐浓硝酸不锈钢等材料内孔时,可采用树脂结合剂制造砂轮。

硬度:应选用硬度较低的砂轮,以提高自锐性。一般选用G~N硬度的砂轮,其中以K~L使用最为普遍,使用微晶刚玉作磨料的内圆磨砂轮,则以J硬度为宜。

组织:为了避免磨削过程中砂轮堵塞,砂轮组织应选较疏松的,一般选用5号~8号较为合适。

BW Bewise Inc. Willy Chen willy@tool-tool.com bw@tool-tool.com www.tool-tool.com skype:willy_chen_bw mobile:0937-618-190 Head &Administration Office No.13,Shiang Shang 2nd St., West Chiu Taichung,Taiwan 40356 TEL:+886 4 24710048 / FAX:+886 4 2471 4839 N.Branch 5F,No.460,Fu Shin North Rd.,Taipei,Taiwan S.Branch No.24,Sec.1,Chia Pu East Rd.,Taipao City,Chiayi Hsien,Taiwan

Welcome to BW tool world! We are an experienced tool maker specialized in cutting tools. We focus on what you need and endeavor to research the best cutter to satisfy users demand. Our customers involve wide range of industries, like mold & die, aerospace, electronic, machinery, etc. We are professional expert in cutting field. We would like to solve every problem from you. Please feel free to contact us, its our pleasure to serve for you. BW product including: cutting toolaerospace tool .HSS Cutting toolCarbide end millsCarbide cutting toolNAS Cutting toolCarbide end millAerospace cutting toolФрезерыCarbide drillHigh speed steelMilling cutterCVDD(Chemical Vapor Deposition Diamond )PCBN (Polycrystalline Cubic Boron Nitride) Core drillTapered end millsCVD Diamond Tools Inserts’PCD Edge-Beveling Cutter(Golden Finger’PCD V-Cutter’PCD Wood tools’PCD Cutting tools’PCD Circular Saw Blade’PVDD End Mills’diamond tool Single Crystal Diamond Metric end millsMiniature end millsСпециальные режущие инструменты Пустотелое сверло Pilot reamerFraisesFresas con mango PCD (Polycrystalline diamond) FreseElectronics cutterStep drillMetal cutting sawDouble margin drillGun barrelAngle milling cutterCarbide burrsCarbide tipped cutterChamfering toolIC card engraving cutterSide cutterNAS toolDIN toolSpecial toolMetal slitting sawsShell end millsSide and face milling cuttersSide chip clearance sawsLong end millsStub roughing end millsDovetail milling cuttersCarbide slot drillsCarbide torus cuttersAngel carbide end millsCarbide torus cuttersCarbide ball-nosed slot drillsMould cutterTool manufacturer.

Bewise Inc. www.tool-tool.com

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