DIE FLASHING PROBLEM

DIE FLASHING
When a layer of extra metal around parting line of a parts after shots is die flashing, also during high speed shot when metal get out of die and a biscuit variation occur.

TYPES OF DIE FLASHING:

1. FLASH INSIDE THE DIE FACE 

2. FLASH OUT OF DIE AND FIRED IN THE AIR

3. FLASH IN SLIDES AREA

1. FLASH INSIDE THE DIE FACE :- This types of flash occur only within Die , when we get a parts after shots there is extra metal layer at parting lines of parts.

CAUSE: 

          This flash is occur due to some following reasons

             1. Die locking force is low for the die.

             2. Cooling of inserts fix/moving.

             3. Proper die face not matching.

SOLUTIONS :

         1. Check Die locking force 

         2. Check Die cooling.

         3. Check die face blue matching.

         4. Check Plunger high speed according to required gate speed.

         5. Check load distribution on Tie bar

2. FLASH OUT OF DIE AND FIRED IN THE AIR :- This types of flash occur out of Die blocks, when we get a parts after shots there is extra metal thin or thick sheets at parting lines of parts.

   

CAUSE: 

          This flash is occur due to some following reasons

             1. Metal temp high.

             2. Die temperature high.

             3. Die locking force is low for the die.

             4. Cooling of inserts fix/moving.

             5. Proper die face not matching.

             6. Tie Bar load distribution.

             7. Plunger Speed is too high.

SOLUTIONS :

         1. Check Die locking force 

         2. Check Die Blocks cooling.

         3. Check die face blue matching.

         4. Check Plunger high speed according to required gate speed.

         5. Check load distribution on Tie bar

         6. Check Metal temp and Die temp.

                                                 TIE BAR LOAD DISTRIBUTION

3. FLASH IN SLIDES AREA :-This types of flash occur in Slides of Die , when we get a parts after shots there is extra metal layer at slide area of parts.

CAUSE: 

          This flash is occur due to some following reasons

             1. Cooling of slides fix/moving.

             2. Die temperature

             3. Proper slides not matching.

             4. Mechanical hard piece and guide strip bolt broken.

            

  SOLUTIONS :

         1. Check slide cooling.

         2. Check Slide blue matching.

         3. Check core pressure, if mechanical resting is not in die design.

         4. Check guide strips bolts and hard piece bolt and conditions.

HARD PIECE CONDITION