Sand casting and Die casting
Sand Casting Vs Die Casting
1 Sand casting —Small cost of mould, quick cutting in market, low risk of project input. but die casting need more time for making the mould .and the cost is so expensive .
2. There are more sand holes in the sand casting ,and the surface apperance is bad .and die casting part has good surface appearance . only a little sand hole .so we need fix the problem by hand .for example ,putty or welding the surface,polish the rough surface .
3.sand casting thinkness need large than 3mm, and need machine more by cnc machining .so the product cost is very highest than die casting part .
4. Surface finished –we only suggest choosing powder coating for sand casting part . and for die casting ,you can use Surface Finish Metal Parts
5.sand casting mould is very easy to modify . we can make it by wooden and aluminium . so if you have large change on the design . the cost also very cheapest . instead ,hard and more cost for modifing the die casting tooling .the die casting mould material is iron (h13,8407,skd61),the hardness is about HRC 46° -48° . so if you choose die casting ,we suggest to make rapid prototype first to check the design.