Machine Drawing

238 Machine Drawing dharm d:\N-Design\Des15-2.pm5 DRAWING EXERCISES 15.1 Calculate the maximum and minimum limits for both the s ...

Limits, Tolerances and Fits 239 dharm d:\N-Design\Des15-2.pm5 15.6 Compute the limit dimensions for a clearance fit on the hole ...

240 Machine Drawing dharm d:\N-Design\Des15-2.pm5 15.10 Indicate two methods of showing the top surface of the component as the ...

Limits, Tolerances and Fits 241 dharm d:\N-Design\Des15-2.pm5 15.13 Explain the meaning of the geometrical tolerances indicated ...

SURFACE ROUGHNESS 16 242 16.1 Introduction It is not possible to achieve in practice, a geometrically ideal surface of a compone ...

Surface Roughness 243 dharm d:\N-Design\Des16-1.pm5 16.2.1 Actual Profile, Af It is the profile of the actual surface obtained b ...

244 Machine Drawing dharm d:\N-Design\Des16-1.pm5 Table 16.1 Surface roughness expected from various manufacturing processes Sl. ...

Surface Roughness 245 dharm d:\N-Design\Des16-1.pm5 16.3 Machining Symbols This article deals with the symbols and other additio ...

246 Machine Drawing dharm d:\N-Design\Des16-1.pm5 (a) a 2 a 1 (b) a Milled (d) c (e) T a (^2) a 1 Chromium plated (c) f Fig. 16. ...

Surface Roughness 247 dharm d:\N-Design\Des16-1.pm5 If it is necessary to indicate the sampling length, it should be selected fr ...

248 Machine Drawing dharm d:\N-Design\Des16-1.pm5 16.4.2 Indication of Machining Allowance When it is necessary to specify the v ...

Surface Roughness 249 dharm d:\N-Design\Des16-1.pm5 Fig. 16.7 a All over a Fig. 16.8 a 3 a 2 a 3 a 2 (a) (b) a 3 a 2 (c) a All o ...

250 Machine Drawing dharm d:\N-Design\Des16-1.pm5 z y z a^2 a 1 b c de = y = 3, 2 4 (a) (b) Fig. 16.10 THEORY QUESTIONS 16.1 Wha ...

17.1 Introduction In many ways, learning to read a drawing is the same as learning to read a language. Blueprint is the common n ...

252 Machine Drawing dharm d:\N-Design\Des17-1.pm5 7. What is the purpose of the threaded hole marked ‘X’? — For adjusting the to ...

Blueprint Reading 253 dharm d:\N-Design\Des17-1.pm5 15° 38 57 R 12.5 X 15° 50 12.5 134 67 (^10) B 108 4 HOLES, M 10 DEEP 25 f 90 ...

254 Machine Drawing dharm d:\N-Design\Des17-1.pm5 11. What is the slope of the recess in the housing base? —15° 12. What are the ...

Blueprint Reading 255 dharm d:\N-Design\Des17-1.pm5 Fig. 17.3 Gear box cover D 12 42 6 A R9 12 E 60 51 48 X 30 C 48 B R9 24 9 R ...

256 Machine Drawing dharm d:\N-Design\Des17-1.pm5 Fig. 17.4 Steam stop valve 25 14 24 Part No. ...

Blueprint Reading 257 dharm d:\N-Design\Des17-1.pm5 connected to the cover (9) by two pillars (11). The bottom end of the spindl ...