MCQ'S ON CASTING PROCESS (Part-1): Pattern making,color coding ,allowances... Prof. Sudhir Thakre
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- Опубліковано 25 сер 2024
- Multiple choice questions ON CASTING PROCESS (Part-1):
#Patternmaking
#colorcoding
#allowances
Pattern making: Patterns are a model for the object to be cast. A pattern makes an impression on the mold, liquid metal is poured into the mold, and the metal solidifies in the shape of the original pattern. Patternmaking isn't as simple as the definition suggests.
Type of patterns
Single Piece Pattern. Single piece pattern, also called solid pattern is the lowest cost casting pattern.
#TwoPiecePattern.
#MultiPiecePattern.
#MatchPlatePattern.
#GatePattern.
#SkeletonPattern.
#SweepPattern.
#LoosePiecePattern.
#Colorcoding:
Black Core-prints on unmachined openings.
Yellow strips on black Core print for machined openings.
Green Loose pieces and loose core-prints.
Black strips diagonal Strengthen the weak pattern or shorten a casting.
Black Core-prints on unmachined openings.
Yellow strips on black Core print for machined openings.
Green Loose pieces and loose core-prints.
Black strips diagonal Strengthen the weak pattern or shorten a casting.
Allowances:
#shrinkageAllowances
Shrinkage is of three types:-
a) Liquid Shrinkage
b) Solidification Shrinkage.
c) Solid Shrinkage
#DraftAllowances
#Machiningallowances
#Shakeorrappingallowances
#Distortionorcamberallowances
Very helpful video in this pandemic getting to learn something interesting👍✨
Thank you so much sir
Most welcome
Mr. Danish important thing is that we are making a symmetrical shaped then it may be of any shape like conical, cylindrical, bell etc after all it depends on shape of sweep board
Sweep patterns are used for making Axi-symmetric castings like conical and bell shapes other than the cylindrical( obviously symmetrical) ones. Your good-self can correct me if I am wrong. BTW Thanking your good-self for the unique content.
Sir what diffre bet match plate and gated paten