What is Pattern (Casting)?

Definition of Pattern:

Pattern is a replica of the required casting to be cast. Pattern is used to create a cavity in mold into which molten metal is poured during the casting process.

This pattern is used in sand casting process.

Material used for Patten:

Wood
Metal
Plastic
Thermocol
Wax (In Special Case)
Plaster of Paris (In Special Case)

Type of Pattern:

Single Piece Pattern
Split or two piece pattern
Match plate pattern
Cope & Drag Pattern
Gated Pattern
Sweep Pattern
Skeleton Pattern
Shell Pattern
Loose Piece Pattern
Flow Board Pattern
Loose Piece Pattern
Segmental Pattern
Left & Right Hand Pattern
Lagged-up Pattern
Built Type Pattern

Pattern Allowances

Comments

Difference Between : IC and EC Engine

Difference between internal combustion engine & external combustion engine is given below:

Comparison between : Otto & Diesel Cycle

Comparison of Otto and Diesel cycle is given below:

Difference Between : EN8 & MS Material

What is the difference between EN8 and MS material? Answer : EN 8 Material MS Material EN 8 material has higher tensile strength. MS material has comparatively low tensile strength. EN 8 material applicable when high strength required. MS material is applicable when high strength not required. EN 8 material contain 0.4% C MS material contain up to 0.25% C EN 8 material is use when other heat treatment process is carried out on it. MS material is use when no need of other heat treatment process on it. EN 8 material can use instead of MS material. MS material can not use instead of EN 8 material. Material is more expensive then MS. Material is less expensive then EN 8. Let me know if there is a addition of point or correction in any point.

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