Knowledge

Advantages

• Die-cast parts are relatively cheaper and produce uniform quality for large volume production. Lower labour costs are due to semi or fully automated processes.
• Intricate forms and complex shapes can be cast easily, with part sizes ranging from 25g to 25Kg.
• Parts with walls as thin as 0.38 mm are possible because of the high pressure used during the process.
• Because the molten metal rapidly cools at the die walls, the casting has fine-grained hard skin with excellent strength. As a result, as the wall thickness decreases, the strength-to-weight ratio of die-cast components increases
• Generates smooth surfaces for bearings that would otherwise be machined.
• It can generate net shape products at high rates requiring little or no post-processing.
• Excellent dimensional accuracy and good surface finish – 0.8-3.2 um Ra.
• Smaller pieces can be manufactured using either multi-cavity die or miniature die casting

 

Die casting disadvantages

• Die casting parts are only economical for large production batches due to their high equipment cost
• High melting point metals and alloys are not suitable
• Because of iron content, ferrous metals such as stainless steel, carbon steel, and alloy steel tend to rust hence not suitable
• Large pieces are unable to be cast due to die design and process limitation
• High die cost and generally long lead time.
• Changes to part design are time-consuming and expensive, hence worth prototyping the part before committing to the die casting
• Porosity due to trapped air and gases affects the integrity of the part. Vacuum die casting reduces porosity by creating a vacuum before molten metal fill.

Welcome to reach out us for more details. Please feel free to call us at 029 81161513 or email us at info@castings-forging.com