Aluminium gravity casting and mold design

Aluminium gravity casting design

Complete design of aluminium gravity casting: Aluminum casting design is a system job involving a series of special knowledge. As long as we guarantee the function of parts, we should make the design suitable and easy for casting while preventing casting failure, such as shrinkage holes resulting for uneven wall thickness. Another issue should be taken into consideration is the casting design should be easy for post treatment including trimming, cleaning, machining and surface treatment like polishing and plating. Some odd profile of a bad designed casting will be hard for trimming or machining. And unnecessary wall thickness results to concentrated pin holes underneath the casting surface fail to mirror polish and further plate.

HH aluminum gravity casting foundry provides professional solution for your aluminum casting design. Our engineering team composite of rich experienced casting and machining experts will assist you to fulfill your engineering aim. Or we can provide professional advice to you to improve your design. Besides, we also provide design service for project of switching other manufacturing process to gravity casting process such as switching aluminum extruded products to gravity cast products, or complete machining parts to gravity casting parts. for more

Adapting design for post machining: machining is the most costly one of all manufacturing processes. That is why we are always geared to save post machining by all means. Using casting features to replace machining ones is one of the common means. However the casting surface quality is inferior to that of machining. For some mating features of high precision level, post machining is the only choice. However that is not to say casting and machining is always offset. In the practice, some special casting features are added to the raw casting to facilitate post machining, such as clamping lug. And good casting design can save machining allowance and reduce deformation of the machining datum. Therefore, casting design should take the machining features into consideration carefully to get it easy and economical.

Aluminium gravity casting mold design

A good functional mold is essential for an aluminum gravity casting project. The aluminum gravity casting mold design is also the key technical issue in this field. The design of an aluminum gravity casting mold first should locate its parting surface and parting line in order to get minimum dimension distortion, and facilitate pouring and air releasing. Once the parting surface is done, we should carry out the volume of melted alloy required for the whole casting system including casting body, sprue system, gating system and riser system. The volume decides the size of gate and riser. Besides, to release the casting body from the mold, ejectors system should be applied to the mold at one side or both sides.

Aluminum gravity casting mold design shall take the different type of casting machines into consideration. There are quite a lot gravity casting machines with different amounting plate and pouring and releasing means. HH casting foundry is mainly using tilting gravity casting machines for simple two halves mold and vertical six - cylinder casting machines for multi-piece casting mold. For tilting casting molds, they is universal for other tiling casting machines or with slight modification. However, the mold designed for six - cylinder casting machines is quite particular for our own special casting machines.

Aluminum gravity casting molds can be much more flexible compared with sand casting mold and high pressure die casting molds, which is also available for mulit-silding blocks in inclining direction. Therefore, gravity casting process is available for certain complicated aluminum products. HH casting foundry is providing professional tooling design and making service. Aluminum gravity casting project or only gravity casting mold design or making is welcome.