Split Patterns -> Casting Defects (B)

Question 1

SPLIT PATTERNS

Answer 1

the original patter is divided along a suitable plane for separate use in the COPE and DRAG. COPE CAVITY and DRAG CAVITY

Question 2

MATCH PATTERN OR PLATES

Answer 2

Solves misalignment issues for split patters by passing LOCKING PINS through holes in the MATCH PLATES

Question 3

CORES definition

Answer 3

Create passageways, while denying access to molten metal

Question 4

What are CORES made out of

Answer 4

Composite material consisting of SAND bonded together with THERMOSETTING RESIN such as UREA OR PHENOL FORMALDEHYDE

Question 5

CORE PRINTS

Answer 5

generate indentations in the cavity wall for the core. Lets the workers know where to place core.

Question 6

CHAPLET

Answer 6

supports one end of the core until it becomes fully surrounded by metal

Question 7

CASTING DEFECTS/ FLAWS

Answer 7

1. VOIDS- Gas filled areas inside the metal part
2. INCLUSIONS- SAND and SLAG mix with the molten metal in the cavity
3. SURFACE DEFECTS- BLOW,SCAR,BLISTER, SCAB
4. WASH(or CUT)- extra metal being present on the final part
5. MISRUN- metal cools and solidifies before filling the mold cavity
6. COLD SHUT
7. MISMATCH
8. HOT TEARS

Question 8

NDT

Answer 8

Non Destructive Method

Question 9

What is the solution to a COLD SHUT?

Answer 9

DYE PENETRANT

Question 10

What is the solution to MISMATCH?

Answer 10

MATCH PLATES