A8GT-70GOT-EB日本发那科

G2CrNi2Mo渗碳钢制圆锥滚子轴承外圈，在使用过程中出现开裂现象。由于该轴承产量高，使用部位关键，为避免再出现同样的开裂现象，必须找出其产生失效的原因。本文通过宏观分析、微观分析、扫描电镜的分析，就开裂的原因进行了讨论。渗碳钢制圆锥滚子轴承外圈开裂失效分析1.外圈开裂宏观特征失效的渗碳钢制圆锥滚子轴承外圈外表面除有一条贯通的、且与轴线平行的开裂裂纹外，还有两条源自大裂缝的散射细裂纹。除两端及中部非工作区外，套圈上有两道大的磨损区，呈不同的亮白色光泽带。
MVME172-233
MVME172-233A
MVME172-243
MVME172-243A
MVME172-253
MVME172-253A
MVME172-263
MVME172-263A
MVME172-303
MVME172-303A
MVME172-313
MVME172-313A
MVME172-323
MVME172-323A
MVME172-333
MVME172-333A
MVME172-343
MVME172-343A
MVME172-353
MVME172-353A
MVME172-363
MVME172-363A
MVME172-373
MVME172-373A
MVME172-410
MVME172-410A
51400978-100   Processor (early version)
51400988-100    US Touchscreen, Smart
51400988-200    US Touchscreen, Smart, CE
51400997-100    PLC Gateway Interface博大精深 同心致远
51400997-200    Enhanced PLC Gateway I/F
51401052-100    SPC Card
51401072-200    QMEM-2
51401072-300    3 M-Word Enhanced Memory博大精深 同心致远
51401088-100    CNI - Interface for PLNM
51401163-100    Process Network Modem-NIM
51401286-100    EPDG Interface Card
51401286-100    EPDG Interface Card博大精深 同心致远
51401288-100   68020 w/2 Meg
51401288-200   68020 w/3 Meg
51401291-100   LCN I/F
51401291-100    Low Power LCN (LLCN) 博大精深 同心致远
51401496-100    Dual Node Fan Assembly
51401497-100    Dual Node Power Supply
51401551-200   68020 w/2 Meg
51401551-300   68020 w/3 Meg博大精深 同心致远
51401551-400   68020 w/4 Meg
51401551-600   68020 w/6 Meg
51401551-800   68020 w/8 Meg
51401560-100    QWERTY Membrane Keyboard博大精深 同心致远
ABB微型断路器S203-D63
ABB微型断路器S204-D0.5
ABB微型断路器S204-D1
ABB微型断路器S204-D2
ABB微型断路器S204-D3
ABB微型断路器S204-D4
ABB微型断路器S204-D6
ABB微型断路器S204-D10
ABB微型断路器S204-D16
ABB微型断路器S204-D20
ABB微型断路器S204-D25
ABB微型断路器S204-D32
ABB微型断路器S204-D40
ABB微型断路器S204-D50
ABB微型断路器S204-D63
ABB微型断路器S201-D0.5
ABB微型断路器S201-D1
ABB微型断路器S201-D2
ABB微型断路器S201-D3
ABB微型断路器S201-D4
ABB微型断路器S201-D6
ABB微型断路器S201-D10
ABB微型断路器S201-D16
ABB微型断路器S201-D20
ABB微型断路器S201-D25
ABB微型断路器S201-D32
ABB微型断路器S201-D40
ABB微型断路器S201-D50
ABB微型断路器S201-D63
ABB微型断路器S202-D0.5
ABB微型断路器S202-D1
ALLEN BRADLEY 291E-FAZ-G1-3FR / 291EFAZG13FR (NEW NO BOX)
ALLEN BRADLEY 872C-A10C18-A2 / 872CA10C18A2 (USED TESTED CLEANED)
ALLEN BRADLEY 961454 / 961454 (USED TESTED CLEANED)
ALLEN BRADLEY 871TM-BH2N12-B4 / 871TMBH2N12B4 (USED TESTED CLEANED)
ALLEN BRADLEY 32A24 / 32A24 (USED TESTED CLEANED)
ALLEN BRADLEY 855T-B10YL3 / 855TB10YL3 (USED TESTED CLEANED)
ALLEN BRADLEY 193206-A01 / 193206A01 (USED TESTED CLEANED)
ALLEN BRADLEY 50906 / 50906 (USED TESTED CLEANED)
ALLEN BRADLEY CF-271 / CF271 (NEW NO BOX)
ALLEN BRADLEY 1610L-T0220SA1 / 1610LT0220SA1 (NEW NO BOX)
ALLEN BRADLEY 140-L2 / 140L2 (NEW NO BOX)
ALLEN BRADLEY GA-473 / GA473 (Used)
ALLEN BRADLEY 190-P024R / 190P024R (RQANS1)
ALLEN BRADLEY 1777-IB / 1777IB (USED TESTED CLEANED)
ALLEN BRADLEY 871TM-DH2NN12-D4 / 871TMDH2NN12D4 (RQANS1)
ALLEN BRADLEY 100S-D110A22C / 100SD110A22C (NEW NO BOX)
ALLEN BRADLEY 1799-D10U10BL / 1799D10U10BL (USED TESTED CLEANED)
ALLEN BRADLEY 801-ASC27 / 801ASC27 (USED TESTED CLEANED)
ALLEN BRADLEY 60-2668 / 602668 (USED TESTED CLEANED)
ALLEN BRADLEY 1771-CX5 / 1771CX5 (NEW IN BOX)
ALLEN BRADLEY 205-BOG / 205BOG (USED TESTED CLEANED)
ALLEN BRADLEY 91886 / 91886 (USED TESTED CLEANED)
ALLEN BRADLEY 1798-BP4 / 1798BP4 (USED TESTED CLEANED)
ALLEN BRADLEY 440E-E25010 / 440EE25010 (USED TESTED CLEANED)
ALLEN BRADLEY 197-FLA2 / 197FLA2 (RQANS1)
ALLEN BRADLEY 855T-BSPM60 / 855TBSPM60 (USED TESTED CLEANED)
ALLEN BRADLEY 855BS-N24DH5 / 855BSN24DH5 (USED TESTED CLEANED)
ALLEN BRADLEY 285-BRC25-M6 / 285BRC25M6 (RQANS1)
ALLEN BRADLEY CWEB4-VS2 / CWEB4VS2 (RQANS1)
ALLEN BRADLEY 440E-D13124 / 440ED13124 (USED TESTED CLEANED)
ALLEN BRADLEY 42JT-B2LAT2-P4 / 42JTB2LAT2P4 (USED TESTED CLEANED)
ALLEN BRADLEY 500F-COD-93 / 500FCOD93 (USED TESTED CLEANED)
ALLEN BRADLEY 610936-01 / 61093601 (USED TESTED CLEANED)
ALLEN BRADLEY 802T-W4A / 802TW4A (Surplus New In Box)

一般使用车床进行机械加工时，会发生所谓的振刀的场合大概有这几种场合：利用成型刀片进行成形车削；细长圆杆的外圆车削；薄肉圆杆的外圆车削；箱形部品（如钣金焊接结构件）车削；超硬材质切削；轴承已受损而继续切削等。当振刀发生时，刀具、工件与车床的振动往往导致工厂内部有刺耳的噪音，而其振幅大小单边达数十微米以上，有时其至高达1微米以上。这种振刀不仅造成刀具或工件的夹持变松之外，同时也因其嘈杂的噪音对操作人员造成不良的身心影响，而加工精度也因此无法达成客户的要求，因此各工具机厂莫不战战兢兢地将振刀问题之排除视为莫大的挑战。