In what areas do die casting designers have expertise?

In our company, Household Appliance Enterprise, we are frequently asked for suggestions on how to improve the design of a component


In our company, Household Appliance Enterprise, we are frequently asked for suggestions on how to improve the design of a component.  As a result, I'd like to share with you some of the more common design recommendations that we make for die casting mould.  A variety of metals can be used in die casting and the parts that are produced have a wide range of characteristics.  A number of the design considerations listed below can be utilized.  Always consider the alloy you intend to use as well as any surface finishing that you would like to have done after the part has been cast when determining your casting specifications.

Variables in Die Casting

Prototypes are available

Adding draft to a part is the first piece of advice I'd like to share with you.  A slight taper is applied to the internal and external walls of a part that is normal to the parting line, which is known as adding draft.  Due to the offset of shrinkage, it is easier to remove the casting from its cavity than it would be otherwise.  It is much easier to cast a part when draft is included.  In general, recommended draft angles range from 14 degrees per side to one degree per side, depending on the alloy and process choices.  Make sure to notify your technical representative of any critical areas where draft must be kept to a bare minimum. . The ability to achieve near-zero draft in specific areas can be accomplished in many cases.  When designing your component, try to keep draft in mind as much as possible, and use liberal draft in non-critical areas from the start.

Fillets and Radii are two terms that are used to describe the shape of a filter or a circle

Also, remember to incorporate fillets and radii into the design of your components.  Make liberal use of fillets and radii wherever it is possible, particularly in non-critical areas.  In the event that a fillet or radius is not possible or desirable in a given area, make a note of it on the component drawing.  Filets and radii help to strengthen the component, improve metal flow, and make the application of subsequent finishes less difficult.


Ribs and Bosses are two of the most important parts of a company's identity

Often, when designing a part, ribs and bosses are used to increase the strength of the component.  In order to avoid sharp corners whenever possible, they should be blended with fillets and radii.  Due to the fact that the majority of ribs and bosses have non-critical side surfaces, it is important to apply draft in the appropriate manner. 

Portions of the body that are not visible to the naked eye

Creating pockets in solid sections is a common method of making lightweight parts when the part being designed must be strong and durable.  Besides lowering the weight of the part, this also reduces cycle time and lowers the cost of manufacturing the component.  Make sure to follow the guidelines for applying draft and radii.

Think about everything that the die casting process has to offer when designing a die cast component.  Consider including features that will incur little or no additional cost in order to maximize your profit potential.  Logos, surface textures, integrated fasteners (rivets, studs), embossed part numbers, and other design elements are examples of what is possible.  Further customization is possible through the use of a four-slide die casting procedure.  All of these and other options are available through your technical representative.