1 Using the Reference Plane RP method draw the Auxiliary vie

1/ Using the Reference Plane (R/P) method, draw the Auxiliary view of the entire object showing true size of surface A 2/ In the space provided, sketch al Full section of the part shown below. No dimensions are required on the sectional view. l.500 REAM KEYWAY r DRILL-2 HOLES Ful/section here.

Solution

3.1 circular section with 5 concentric circles of different diameter. Four circles are shown by rigid lines which are visible in the provided view and one invisible circle .

3.2 A machining allowance of .05 is provided.

4. The order is nominal diameter, threads per inch, unified coarse series

7.1 true

7.2 true

7.3 false

7.4 false. Positive extrsion adds material and negetive extrusion removes mayerial.