Peep into the Details of Gravity Die Casting

Gravity die casting is employed to manufacture casting parts from non-ferrous materials like aluminum or low-temperature alloys. Into a pre-formed forged iron block which is fully machined for supplying the diet; it involves pouring molten metal, under the force of gravity.

The method is employed to make intricately shaped components for a good range of commercial applications within the defense, medical and energy sectors. 

In this blog, we take a glance at the method and therefore the benefits of this system.

Involved in gravity die casting, there are four main steps. First of all, the 2 halves of the die are heated and sprayed with a coating before being clamped together.

Into the cavity of the die, the molten metal is then poured. The metal solidifies at a rapid rate before it's allowed to chill. Finally, the die is opened and therefore the cast parts are removed. This lubrication helps to stop premature solidification and it also aids the removal of the casting.

There are three key stages within the gravity die casting process:

With a die release agent, the heated mold is coated. The discharge agent spray also features a secondary function therein it aids cooling of the mold face after the previous part has been far away from the die.

The die is opened once the part has cooled sufficiently either utilizing mechanical methods or manually. The molten alloy is poured into channels of the tool to permit the fabric to fill all the extremities of the mold cavity. The alloy is either hand poured using steel ladles or dosed using mechanical methods by gravity die casting manufacturers. 

How does die casting compare with other techniques?

Over other equivalent manufacturing processes, there are several key benefits. These include:

• Excellent dimensional accuracy - offering dimensional stability and durability
• High production rates - many castings are often produced at some point 
• improved mechanical properties and Higher lastingness - as compared with sand casting
• Versatility - straightforward and complex shapes are often engineered
• Only minimal finishing is required
• Multiple finishes - textured or smooth surfaces are often produced