Scratching on parts
Hi everyone.
I work for a small mom and pop operation that mostly makes retainer cases. Recently we have been getting these scratches on the parts.
We sent out the both cavities to get polished but the scratches still persists, mainly on the bottom cavity. I tried lowering the shot size to see if it was from overpacking, but it didn't change anything and I honestly have no idea what I am doing.
Anyone have any ideas?
Thank you
EDIT: Thank you for all the suggestions, I am working with my boss with all these suggestions and he is getting in contact with our toolmaker to see what they think. I wish I was more knowledgeable about all this, but all I really do here is set molds and box parts from the machines. I will try to go through the ones I can and update when/if we figure out the cause.