A8GT-70GOT-EB日本發(fā)那科
G2CrNi2Mo滲碳鋼制圓錐滾子軸承外圈，在使用過程中出現(xiàn)開裂現(xiàn)象。由于該軸承產(chǎn)量高，使用部位關(guān)鍵，為避免再出現(xiàn)同樣的開裂現(xiàn)象，必須找出其產(chǎn)生失效的原因。本文通過宏觀分析、微觀分析、掃描電鏡的分析，就開裂的原因進(jìn)行了討論。滲碳鋼制圓錐滾子軸承外圈開裂失效分析1.外圈開裂宏觀特征失效的滲碳鋼制圓錐滾子軸承外圈外表面除有一條貫通的、且與軸線平行的開裂裂紋外，還有兩條源自大裂縫的散射細(xì)裂紋。除兩端及中部非工作區(qū)外，套圈上有兩道大的磨損區(qū)，呈不同的亮白色光澤帶。
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 同心致遠(yuǎn)
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 同心致遠(yuǎn)
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 同心致遠(yuǎn)
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 同心致遠(yuǎn)
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 同心致遠(yuǎn)
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 同心致遠(yuǎn)
ABB微型斷路器S203-D63
ABB微型斷路器S204-D0.5
ABB微型斷路器S204-D1
ABB微型斷路器S204-D2
ABB微型斷路器S204-D3
ABB微型斷路器S204-D4
ABB微型斷路器S204-D6
ABB微型斷路器S204-D10
ABB微型斷路器S204-D16
ABB微型斷路器S204-D20
ABB微型斷路器S204-D25
ABB微型斷路器S204-D32
ABB微型斷路器S204-D40
ABB微型斷路器S204-D50
ABB微型斷路器S204-D63
ABB微型斷路器S201-D0.5
ABB微型斷路器S201-D1
ABB微型斷路器S201-D2
ABB微型斷路器S201-D3
ABB微型斷路器S201-D4
ABB微型斷路器S201-D6
ABB微型斷路器S201-D10
ABB微型斷路器S201-D16
ABB微型斷路器S201-D20
ABB微型斷路器S201-D25
ABB微型斷路器S201-D32
ABB微型斷路器S201-D40
ABB微型斷路器S201-D50
ABB微型斷路器S201-D63
ABB微型斷路器S202-D0.5
ABB微型斷路器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)
一般使用車床進(jìn)行機(jī)械加工時(shí)，會(huì)發(fā)生所謂的振刀的場(chǎng)合大概有這幾種場(chǎng)合：利用成型刀片進(jìn)行成形車削；細(xì)長(zhǎng)圓桿的外圓車削；薄肉圓桿的外圓車削；箱形部品（如鈑金焊接結(jié)構(gòu)件）車削；超硬材質(zhì)切削；軸承已受損而繼續(xù)切削等。當(dāng)振刀發(fā)生時(shí)，刀具、工件與車床的振動(dòng)往往導(dǎo)致工廠內(nèi)部有刺耳的噪音，而其振幅大小單邊達(dá)數(shù)十微米以上，有時(shí)其至高達(dá)1微米以上。這種振刀不僅造成刀具或工件的夾持變松之外，同時(shí)也因其嘈雜的噪音對(duì)操作人員造成不良的身心影響，而加工精度也因此無法達(dá)成客戶的要求，因此各工具機(jī)廠莫不戰(zhàn)戰(zhàn)兢兢地將振刀問題之排除視為莫大的挑戰(zhàn)。
