In casting design, concave junctions are generally added to avoid the effect of sharp corners in the casting.(a) True(b) FalseThe question was posed to me by my school principal while I was bunking the class.The doubt is from Pattern Fillets in portion Pattern and Pattern Making of Casting-Forming-Welding I

In casting design, concave junctions are generally added to avoid the

1.	In casting design, concave junctions are generally added to avoid the effect of sharp corners in the casting.(a) True(b) FalseThe question was posed to me by my school principal while I was bunking the class.The doubt is from Pattern Fillets in portion Pattern and Pattern Making of Casting-Forming-Welding I
Answer» The CORRECT choice is (a) True Explanation: To avoid the problem of sharp corners, usually concave junction or fillet is added, where the two CASTING surfaces meet. This fillet mixes the two intersecting surfaces and MODIFIES internal corner into a rounded corner. This ef¬fectively avoids the SMALL volume of sand in the corner that reduces hot spots in the casting.

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