A vertical cylinder of 50 mm diameter is penetrated by another cylinder of 30 mm
diameter, the axes of which is parallel to both the HP and the VP. The two axes are of 70
mm length intersecting each other. Draw the projections of two cylinders showing curves
of intersection.
Answers
Answer:
1. INTERPENETRATION OF SOLIDS WHEN ONE SOLID PENETRATES ANOTHER SOLID THEN THEIR SURFACES INTERSECT AND AT THE JUNCTION OF INTERSECTION A TYPICAL CURVE IS FORMED, WHICH REMAINS COMMON TO BOTH SOLIDS. THIS CURVE IS CALLED CURVE OF INTERSECTION AND IT IS A RESULT OF INTERPENETRATION OF SOLIDS. PURPOSE OF DRAWING THESE CURVES:-WHEN TWO OBJECTS ARE TO BE JOINED TOGATHER, MAXIMUM SURFACE CONTACT BETWEEN BOTH BECOMES A BASIC REQUIREMENT FOR STRONGEST & LEAK-PROOF JOINT. Curves of Intersections being common to both Intersecting solids, show exact & maximum surface contact of both solids. Study Following Illustrations Carefully. Minimum Surface Contact. ( Point Contact) (Maximum Surface Contact) Lines of Intersections. Curves of Intersections. Square Pipes. Circular Pipes. Square Pipes. Circular Pipes.