GEOMETRIC DIMENSIONING TOLERANCING (GD T) ME 250:Design Manufacturing I School of Mechanical Engineering Shanghai Jiao Tong University 1
Shanghai Jiao Tong University 1 GEOMETRIC DIMENSIONING & TOLERANCING (GD & T) ME 250: Design & Manufacturing I School of Mechanical Engineering
GD &T Outline Dimensioning Principles ■Standards ■Tolerancing Definitions Datums Form Controls Shanghai Jiao Tong University 2
Shanghai Jiao Tong University 2 GD & T Outline n Dimensioning n Principles n Standards n Tolerancing n Definitions n Datums n Form Controls
Working Drawing Three orthographic views Auxiliary views,section views Dimensions Special lines/symbols/notations ■Tolerances ■Title block Bill of materials ■Other notes/labels Shanghai Jiao Tong University 3
Shanghai Jiao Tong University 3 Working Drawing n Three orthographic views n Auxiliary views, section views n Dimensions n Special lines/symbols/notations n Tolerances n Title block n Bill of materials n Other notes/labels
Working Drawing M■TaI⊙7c1412 总智9 1E7261 030 D置 4x' 6-J0 NOTE B 30TH ENDS 01t9.994t0.096 0-/ Oc .005 HAX TAPER ON DIA 86T4N5 A▣ 18-99 D因 -1E226I0,64HA×FE7E0 =249.7540.25- DETAIL B BOTH ENDS SCALE NONE 15ME经 J品容 NOTE A CARSURIZED DEPTH MUST BE SUFFICIENT TO OBTAIN HARDENED CASE DEPTH SPECIFIED.ALL SURFACES MUST BE HARDENED TO REV 3CN-72 MIN.RARDENED DEPTH 1.2-2.3 TO REW C49.AFTER 260.MIN TEHPER FOR 2 HOURS MIN.HARONESS CORE RKW C20 IN.9y4·C CARBU聘121 NB OPTIONAL 4E NOTE D.INSIDE DIA MAY BE HONED AFTER HEAT TREAT.MAX MATL THAT 缺AYBE典EMOVED-Q.D30 N RADIU5 155 NOTE C.APPS SUPPLIER S0的EUT5 CHE KOL8E8 DLZENFABR】K GHBH ATERIAL16制nCF5$T九 R2,0时0.9 ☒ DETAIL A OPTIONAL CHAMFE片 5LE,5+1 受 Shanghai Jiao Tong University 4
Shanghai Jiao Tong University 4 Working Drawing
Dimensioning Dimension is used to specify the object size and its location. Specify the exact theoretically values for the size,orientation and location of features. Shanghai Jiao Tong University 5
Shanghai Jiao Tong University 5 Dimensioning Dimension is used to specify the object size and its location. Specify the exact theoretically values for the size,orientation and location of features