Die Casting

SOMI Capability
SOMI Die Casting Capability

Zinc Alloy Die Casting
Zinc alloy die-casting is a manufacturing process that involves the injection of molten zinc alloy into a steel mold, or die, to create precise and complex parts. This technique is renowned for its ability to produce high-quality components with excellent dimensional accuracy, smooth surfaces, and fine details.

Aluminum Alloy Die Casting
Aluminum alloy die-casting is a manufacturing process that involves injecting molten aluminum into a metal mold, or die, to create high-precision components. This technique is widely used in various industries due to its ability to produce intricate shapes with excellent surface finish and dimensional accuracy.
CNC Machining
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SOMI Die Casting
Die Casting Materials
SOMI's metal die casting service materials mainly include Zinc alloy and Aluminum alloy.
Metal

- Aluminum
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
- Brass
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
- Stainless steel
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
- Copper
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
- Mild Steel
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
- Beryllium bronze
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
- Alloy steel
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
- Titanium
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
- Tool steel
Aluminum has a good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance. It is a highly malleable metal, making it easy to machining, can be anodized.
Type:1050,1060,2011,2024,5052,5051, 6061, 6063, 7075,7050
Plastic

- ABS
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- PVC
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- POM
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- Polypropylene(PP)
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- Nylon
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- PET
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- PTFE(Teflon)
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- FR-4
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- Polycarbonate(PC)
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- PMMA
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- Polyethylene(PE)
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
- PEEK
It is a thermoplastic polymer material with high strength, good toughness, corrosion resistance, high temperature resistance.
Die Casting
Die Casting surface finishes
As-machined
The standard finish of our parts, the "machined" finish, has a surface roughness of 3.2 μm (126 μin), which removes sharp edges and cleanly removes burrs from the part.
Machining Texture:There are slight scratches on the visible surface.
Smooth machining
A finishing CNC machining operation can be applied to the part to reduce its surface roughness. The standard smoothing surface roughness is Ra 1.6 μm (64 μin). Light surface scratches are visible.
Machining Texture:Visible, light surface scratches.
Fine machining
Refers to the process of precision treatment of raw materials or semi-finished products. The standard smoothing surface roughness is Ra 0.8 μm (32 μin).
Machining Texture:Slightly visible.
Bead blasting
Bead blasting refers to the use of round spherical media that, when impacted against the surface of a part, will leave a more uniform finish caused by the sphere “dimpling” the surface.
Machining Texture:Frosted grain.
Brushing
Brushing is a surface treatment process that uses abrasive belts to draw traces on the surface of a material, usually for aesthetic purposes.
Polishing
From Ra 0.8 to Ra0.1, the polishing process uses abrasive materials to rub the surface of the part, making the surface of the part more shiny, depending on your requirements.
Machining Texture:Smooth, glossy finish
Anodizing
Aluminum and its alloy in the corresponding electrolyte and specific process conditions, due to the action of external current, the process of forming an oxide film on the aluminum product.
Machining Texture:Smooth, matte finish.
Electroplating
Electroplated coating preserves the surface of parts and resists rusts and other defects from causing decay by applying electric currents to reduce metal cations.
Machining Texture:Smooth, glossy finish.
Electroless nickel plating
Electroless nickel plating is a process that deposits an alloy of nickel-phosphorus onto the surface of a metal. This process is chemical only, so does not involve the use of electricity.
Machining Texture:Reduced but visible.
Black oxide
Black oxide is a conversion coating similar to Alodine that is used for steel and stainless steel. It is used mainly for appearance and for mild corrosion resistance..
Machining Texture:Smooth, matte.
Powder coating
Using corona discharge, we make the powder coating adsorbed to the part, creating a more wear-resistant layer with a typical thickness ranging from 50 μm up to 150 μm.
Machining Texture:Glossy.
Chromate conversion coating
Chromate conversion coating is a type of conversion coating, used on aluminum as a corrosion inhibitor, as a primer for paint due to increased adherence or to preserve electrical conductivity.
Machining Texture:Visible.
Electrophoresis
In the solution under the action of direct current electric field, the charged resin moves to the opposite electrode phenomenon. Strong corrosion resistance, can be on different colors.
Machining Texture:Visible.
As-machined
The standard finish of our parts, the "machined" finish, has a surface roughness of 3.2 μm (126 μin), which removes sharp edges and cleanly removes burrs from the part.
Machining Texture:There are slight scratches on the visible surface.
Smooth machining
A finishing CNC machining operation can be applied to the part to reduce its surface roughness. The standard smoothing surface roughness is Ra 1.6 μm (64 μin). Light surface scratches are visible.
Machining Texture:Visible, light surface scratches.
Fine machining
Refers to the process of precision treatment of raw materials or semi-finished products. The standard smoothing surface roughness is Ra 0.8 μm (32 μin).
Machining Texture:Slightly visible.
Bead blasting
Bead blasting refers to the use of round spherical media that, when impacted against the surface of a part, will leave a more uniform finish caused by the sphere “dimpling” the surface.
Machining Texture:Frosted grain.
Brushing
Brushing is a surface treatment process that uses abrasive belts to draw traces on the surface of a material, usually for aesthetic purposes.
Polishing
From Ra 0.8 to Ra0.1, the polishing process uses abrasive materials to rub the surface of the part, making the surface of the part more shiny, depending on your requirements.
Machining Texture:Smooth, glossy finish
Anodizing
Aluminum and its alloy in the corresponding electrolyte and specific process conditions, due to the action of external current, the process of forming an oxide film on the aluminum product.
Machining Texture:Smooth, matte finish.
Electroplating
Electroplated coating preserves the surface of parts and resists rusts and other defects from causing decay by applying electric currents to reduce metal cations.
Machining Texture:Smooth, glossy finish.
Electroless nickel plating
Electroless nickel plating is a process that deposits an alloy of nickel-phosphorus onto the surface of a metal. This process is chemical only, so does not involve the use of electricity.
Machining Texture:Reduced but visible.
Black oxide
Black oxide is a conversion coating similar to Alodine that is used for steel and stainless steel. It is used mainly for appearance and for mild corrosion resistance..
Machining Texture:Smooth, matte.
Powder coating
Using corona discharge, we make the powder coating adsorbed to the part, creating a more wear-resistant layer with a typical thickness ranging from 50 μm up to 150 μm.
Machining Texture:Glossy.
Chromate conversion coating
Chromate conversion coating is a type of conversion coating, used on aluminum as a corrosion inhibitor, as a primer for paint due to increased adherence or to preserve electrical conductivity.
Machining Texture:Visible.
Electrophoresis
In the solution under the action of direct current electric field, the charged resin moves to the opposite electrode phenomenon. Strong corrosion resistance, can be on different colors.
Machining Texture:Visible.
Industry
Application Areas of Die Casting

Consumer Electronics
Our manufactured electronic components consistently meet the tight tolerances required in this ever-evolving industry.
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Aerospace & Aviation
Our manufactured electronic components consistently meet the tight tolerances required in this ever-evolving industry.
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Automotive
Our manufactured electronic components consistently meet the tight tolerances required in this ever-evolving industry.
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Medical
Our manufactured electronic components consistently meet the tight tolerances required in this ever-evolving industry.
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Robotics & Automation
Our manufactured electronic components consistently meet the tight tolerances required in this ever-evolving industry.
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Industrial Machinery Parts
Our manufactured electronic components consistently meet the tight tolerances required in this ever-evolving industry.
Learn MoreTest Inspection
Quality Assurance at the Heart of Our Operations

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Ready to elevate your manufacturing with the precision and quality of SOMI's Die Casting services? Contact us today to discuss your project and discover how we can help you achieve unparalleled results. With SOMI, you're not just choosing a service provider, you're choosing a partner dedicated to your success.
We hope to discuss potential cooperation opportunities with you and ask you to provide quotation information for your project. Looking forward to your reply and working with you to promote the success of your project!
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FAQ
Frequently Asked Questions
- Q: What is Aluminum Alloy Die-Casting?A: Aluminum alloy die-casting is a manufacturing process that involves injecting molten aluminum into a metal mold, or die, to create high-precision components. This technique is widely used in various industries due to its ability to produce intricate shapes with excellent surface finish and dimensional accuracy.The process begins by melting aluminum alloy, which is then forced into the mold cavity under high pressure. Once the metal cools and solidifies, the mold opens, and the finished part is ejected. Aluminum alloys, such as A380 and A356, are commonly utilized for their lightweight, strength, and resistance to corrosion, making them suitable for applications in automotive, aerospace, and consumer electronics.With its efficiency and ability to deliver complex geometries, aluminum alloy die-casting is a preferred choice for manufacturers seeking high-quality, durable components at scale.
- Q: What is Zinc Alloy Die-Casting?A: Zinc alloy die-casting is a manufacturing process that involves the injection of molten zinc alloy into a steel mold, or die, to create precise and complex parts. This technique is renowned for its ability to produce high-quality components with excellent dimensional accuracy, smooth surfaces, and fine details.The process begins by melting zinc alloy, which is then forced into a mold under high pressure. Once cooled, the mold is opened, and the finished part is ejected. Zinc alloys, such as ZA-8 and ZA-12, are favored for their strength, corrosion resistance, and lightweight properties, making them ideal for applications in automotive, electronics, and consumer goods.With its efficiency and versatility, zinc alloy die-casting stands out as a reliable solution for producing durable and intricate components at scale.