CNC machining is a widely used manufacturing process that enables the production of complex and precise parts. This article focuses on CNC machining services for stainless steel precision casting and aluminum die casting. We will cover the materials used, drawing formats, production processes, surface roughness, treatments, inspection instruments, and applications of CNC machining parts.
Stainless Steel: Stainless steel is a popular choice due to its corrosion resistance, high strength, and durability. It is suitable for various applications, including automotive, aerospace, and medical industries.
Aluminum: Aluminum is known for its lightweight properties and excellent thermal conductivity. It finds applications in industries such as electronics, automotive, and consumer goods.
CNC machining requires precise instructions for producing parts. Commonly used drawing formats include:
CAD (Computer-Aided Design): CAD files are digital 2D or 3D representations of the part's design, which provide all necessary dimensions and specifications.
CAM (Computer-Aided Manufacturing): CAM files are generated from CAD data and provide instructions for the CNC machine to carry out the manufacturing process.
Precision casting, also known as investment casting, is a process used to create intricate and detailed parts. The production process involves the following steps:
Pattern Creation: A pattern, typically made of wax or a similar material, is produced based on the CAD design.
Mold Assembly: The pattern is attached to a gating system to create a mold.
Shell Building: The mold is dipped in a ceramic slurry and coated with fine sand to create a ceramic shell around the pattern.
Dewaxing: The ceramic shell is heated to melt and remove the wax pattern, leaving behind a cavity in the shape of the desired part.
Casting: Molten stainless steel is poured into the ceramic shell, filling the cavity.
Cooling and Solidification: The casting cools and solidifies inside the mold.
Finishing: The casting is removed from the ceramic shell, and finishing processes, such as cutting and polishing, are performed.
Aluminum die casting is a process that uses a mold, called a die, to produce complex aluminum parts. The steps involved are as follows:
Die Preparation: The die is coated with a release agent to aid in the removal of the finished part.
Injection: Molten aluminum is forced into the die under high pressure.
Cooling: The aluminum solidifies and takes the shape of the die.
Ejection: The solidified part is ejected from the die.
Trimming and Finishing: Excess material and imperfections are removed, and the part is finished to meet required specifications.
The surface roughness of CNC machined parts is critical for their functionality and appearance. After machining, the parts may undergo various surface treatments, including:
Polishing: This process smoothens the surface to achieve a high-quality finish.
Anodizing: Aluminum parts can undergo anodization to improve corrosion resistance and add color.
Passivation: Stainless steel parts can be passivated to enhance corrosion resistance and remove surface contaminants.
Plating: Parts can be plated with various materials, such as nickel or chrome, to improve appearance and durability.
To ensure the precision and quality of CNC machined parts, various inspection instruments are used, including:
CMM (Coordinate Measuring Machine): CMMs accurately measure the dimensions and geometries of parts.
Calipers and Micrometers: These tools are used for precise measurements of length and thickness.
Surface Roughness Testers: Used to measure the surface roughness of machined parts.
CNC machining parts find applications in numerous industries, such as:
Automotive: Engine components, transmission parts, and brake components.
Aerospace: Aircraft fittings, turbine blades, and structural components.
Medical: Surgical instruments, implants, and medical devices.
Electronics: Computer parts, connectors, and smartphone components.
Consumer Goods: Household appliances, sporting goods, and fashion accessories.
| Product name | Stainless Steel Precision Casting CNC Machining Parts Aluminum Die Casting Processing | |
| Production Equipment | CNC, Milling Machine Processing, CNC Lathe Processing,CNC Turning, CNC Milling, Laser Cutting, Bending, Spinning, Wire Cutting, Stamping, Electric Discharge Machining (EDM), Injection Molding | |
| Material | Copper | |
| Drawing format | STEP,STP,GIS,CAD,PDF,DWG,DXF etc or samples. | |
| Production Process | Raw material incoming inspection→Drawing Confirmation→Machine Setup→Trial Production→Sample quality check and confirmation→Mass production→Final Inspection→Packing→Ready to Ship | |
| Finish | Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish, Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench), Electro Polishing,Chrome Plating, Knurl, Laser etch Logo, etc. |
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| Application | Auto Parts, Hydraulic Hoses, Oil Machinery, Geological Drilling, MotorCycle, Bycycle, Agricultural Machine Parts, Engineering Machinary, Fastners. | |
| Surface roughness | Ra 0.1~3.2 | |
| Surface Treatment | Grinding, Polish, Deburr, Painting, Galvanization, Chrome Plating, Anodization treatment etc | |
| Inspection | 100% Dimensional Check 100% Visual Check Mechanical Properties Inspection, Internal Lab test report or Third Party Inspection Report. |
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| Inspection Instrument | Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier,CMM Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge |
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| Tolerance | Customer's Drawing Request | |
TORICH is an enterprise that has been producing precision steel pipes and steel pipe processing for over 20 years, with a factory area of approximately 20000 square meters
The main products produced are carbon steel and alloy steel grade seamless steel pipes, welded precision steel pipes, DOM steel pipes, seamless and welded stainless steel pipes.And our separate workshop also produce machined cast iron parts and cast steel parts, as well ad customized precision parts and difficult precision parts. Our strength is with in our ability to produce metal parts of higher quality control in an integrated process, from mapping and mould design, to casting, forging, machining, heat treatment, surface treatment, assembly and testing.
TORICH team is familiar with the quality requirements and process standards of precision parts and steel tubes of leading industrial companies at home and abroad, constantly optimizes the production and management level, and constantly looks for like-minded excellent suppliers, which enable us to reduce the production cost and have a comparative advantage over many of our competitors.
In the field of processing, TORICH has 18 sets 4-axis/3-axis CNC machines and over 30 sets of CNC lathers. The machining center is capable of machining 1100x600x800mm parts and the CNC lathes are capable of processing 550x1500mm parts. We specialize in machining stainless steel, alloy steel and other hard metals, as well as carbon steel, aluminium, and copper, with a dimensional accuracy of 0.01mm.
As of 2023, TORICH has perfectly cooperated with more than 50 countries, including Russia, India, Australia, the United Kingdom, France, the United States, Canada, Brazil, and Egypt. Quality and reputation are always our first concerns, with the aim of well serving every customer who trusts in us. TORICH looks forward to partnering with customers all over the world.
Our products are sold all over the world, you can rest assured.
