The Hill and Griffith Company
1085 Summer Street - Cincinnati, OH 45204
Connect with Hill and Griffith Foundry Casting, Concrete Casting, and DieCasting Supplies on Facebook
Connect with Hill and Griffith Foundry Casting, Concrete Casting, and DieCasting Supplies on Twitter
Hill and Griffith Foundry Casting, Concrete Casting, and DieCasting Supply Videos on Youtube
Connect with Hill and Griffith Foundry Casting, Concrete Casting, and DieCasting Supplies on Linkedin

Die Casting News

Review of Permanent Mold Metalcasting Lubrication

Posted by Hill and Griffith Company on Mar 1, 2017 3:10:41 PM

(This week's post is a review of an article and video about permanent mold metalcasting lubrication: Permanent Mold Casting from Custompart.net and Permanet Mold Castings video by China Savy.)

Permanent mold casting is a metal casting process that shares similarities to both sand casting and die casting. As in sand casting, molten metal is poured into a mold which is clamped shut until the material cools and solidifies into the desired part shape. However, sand casting uses an expendable mold which is destroyed after each cycle. Permanent mold casting, like die casting, uses a metal mold (die) that is typically made from steel or cast iron and can be reused for several thousand cycles. Because the molten metal is poured into the die and not forcibly injected, permanent mold casting is often referred to as gravity die casting.

Permanent mold casting is typically used for high-volume production of small, simple metal parts with uniform wall thickness. Non-ferrous metals are typically used in this process, such as aluminum alloys, magnesium alloys, and copper alloys. However, irons and steels can also be cast using graphite molds. Common permanent mold parts include gears and gear housings, pipe fittings, and other automotive and aircraft components such as pistons, impellers, and wheels.

Permanent-Mold-Metalcasting-Lubrication.jpg

 

The permanent mold casting process consists of the following steps:

1. Mold preparation - First, the mold is pre-heated to around 300-500°F (150-260°C) to allow better metal flow and reduce defects. Then, a ceramic coating is applied to the mold cavity surfaces to facilitate part removal and increase the mold lifetime.

2. Mold assembly - The mold consists of at least two parts - the two mold halves and any cores used to form complex features. Such cores are typically made from iron or steel, but expendable sand cores are sometimes used. In this step, the cores are inserted and the mold halves are clamped together.

3. Pouring - The molten metal is poured at a slow rate from a ladle into the mold through a sprue at the top of the mold. The metal flows through a runner system and enters the mold cavity.

4. Cooling - The molten metal is allowed to cool and solidify in the mold.

5. Mold opening - After the metal has solidified, the two mold halves are opened and the casting is removed.

6. Trimming - During cooling, the metal in the runner system and sprue solidify attached to the casting. This excess material is now cut away.
 
Permanent-Mole-metalcasting-Lubricant.jpg
 

Hill and Griffith Customer Service

We're known for our hands on approach. Let us visit your plant and recommend release agents, lubricants, plunger lubricants and permanent mold lubricants that suit your needs. Products that represent the latest in technology and ongoing research that enhance competitiveness and increase productivity. 

Hill and Griffith Samples

Product Samples

We are pleased to provide samples in quantities large enough to allow you to "try before you buy." Die Casting and Squeeze Lubricants- Diluco®, Permanent Mold Coatings- Concote™, Plunger Lube™- Graphite and non-graphite oils and pastes with excellent anti-wear properties, Casting Operations Products: Start-up lubes, Ladle coatings, Anti-soldering pastes, Water glycol, Trim press lubricants, Surface protection for casting storage, Corrosion protection for die storage, Cleaners for machines and dies, Corrosion protection for machines, Heat treatment quenchants, and Heat-transfer fluids. Also, Industrial Lubricants Griflube®, Hydraulic fluids with fire-resistant and anti-wear properties, Bio-Syn natural ester-based hydraulic fluid, Way oil knuckle lubes and Metalworking Fluids- Grifcut™. Contact Us »

 

Hill and Griffith Customer Service

Technical Services & Support

On-site process surveys, Casting defect investigations, Product testing, Tooling start-ups and Statistical process controls and much more. Also, lab facilities are available to provide testing upon request. Contact Us »


Bulletins and Technical Papers for Metal Casting Products

Tags: Die Casting, Die Casting Release Agents, die casting supplies, die casting supply, Die Casting Release Agent Application, die casting process improvement, Die Casting Lubricants, Die cast plunger lubrication, Permanent-Mold-Metalcasting-Lubrication

 


Hill and Griffith Customer Service

We're known for our hands on approach. Let us visit your plant and recommend release agents, lubricants, plunger lubricants and permanent mold lubricants that suit your needs. Products that represent the latest in technology and ongoing research that enhance competitiveness and increase productivity. 

Hill and Griffith Samples

Product Samples

We are pleased to provide samples in quantities large enough to allow you to "try before you buy." Die Casting and Squeeze Lubricants- Diluco®, Permanent Mold Coatings- Concote™, Plunger Lube™- Graphite and non-graphite oils and pastes with excellent anti-wear properties, Casting Operations Products: Start-up lubes, Ladle coatings, Anti-soldering pastes, Water glycol, Trim press lubricants, Surface protection for casting storage, Corrosion protection for die storage, Cleaners for machines and dies, Corrosion protection for machines, Heat treatment quenchants, and Heat-transfer fluids. Also, Industrial Lubricants Griflube®, Hydraulic fluids with fire-resistant and anti-wear properties, Bio-Syn natural ester-based hydraulic fluid, Way oil knuckle lubes and Metalworking Fluids- Grifcut™

Contact us for Product Samples

Hill and Griffith Customer Service

Technical Services & Support

On-site process surveys, Casting defect investigations, Product testing, Tooling start-ups and Statistical process controls and much more. Also, lab facilities are available to provide testing upon request. 

Contact us to Arrange a Visit

Bulletins and Technical Papers for Die Casting Products

Subscribe to Die Casting News

Follow Me

Diecasting News Categories

see all