Explanation of different material surface treatment technologies in CNC machining

I. Introduction

In the process of CNC machining, surface treatment technology is crucial. It not only affects the appearance quality of the part, but also directly relates to the performance and durability of the part. Whether it is to improve corrosion resistance or enhance the wear resistance of parts, surface treatment plays a key role in the whole manufacturing process. Through the appropriate surface treatment technology, you can significantly improve the service life of the product and work efficiency. This article will provide an in-depth analysis of CNC machining in the common surface treatment technology, and introduces how to choose the surface treatment method suitable for different materials and application requirements.

II. CNC machining in the common surface treatment technology

Anodizing

Applicable materials: aluminium alloy, titanium alloy

Function: Anodizing forms a dense oxide film on the metal surface through electrolysis process to increase corrosion resistance and hardness and improve appearance.

Applicable Scenarios: Widely used in aerospace, automotive manufacturing and electronics industries, especially in scenarios where parts are required to have excellent corrosion resistance and good appearance.

Bead blasting

Applicable materials: metals and plastics

Function: Bead blasting cleans up surface dirt by spraying abrasives, improves surface adhesion and roughness, and increases the adhesion of coatings.

Applicable Scenarios: Commonly used for surfaces that require non-slip or decorative finishes, such as electronic housings, automotive parts and construction materials.

Nickel and chrome plating

Applicable materials: steel, aluminium

Function: Nickel and chrome plating can provide metal surfaces with additional wear resistance, corrosion resistance and glossy appearance, and enhance the oxidation resistance of parts.

Application Scenario: Widely used in automotive manufacturing, mechanical parts and electronic products, especially where enhanced appearance and longer service life are required.

Electrolytic Polishing

Applicable materials: stainless steel, aluminium

Function: Electrolytic polishing removes small particles on the surface of the material through electrolysis, making the surface smooth and bright and reducing corrosion.

Applicable Scenario: Especially suitable for food processing, medical equipment and other fields, requiring parts with high gloss and corrosion resistance.

Coating treatment

Applicable materials: metal, plastic

Function: Coating treatment usually refers to the application of protective coatings to metal or plastic surfaces to improve the wear resistance, high temperature resistance and corrosion resistance of parts.

Scenario: Widely used in aerospace, automotive industry, electronic products and other fields, especially the parts are required to withstand high temperatures and strong corrosive environment for a long time.

III. Surface treatment requirements of different materials

Surface treatment requirements of metal materials

Steel: The surface of steel usually needs to be nickel-plated, chromium-plated or sandblasted to enhance its wear resistance and corrosion resistance. For stainless steel, electrolytic polishing can also be carried out to enhance its gloss.

Aluminium alloy: The surface treatment of aluminium alloy mostly adopts Anodizing, which not only enhances its oxidation resistance, but also increases the surface hardness and improves its appearance.

Titanium alloys: Titanium alloys are usually anodised to improve their surface hardness and corrosion resistance, and are commonly used in high-tech fields such as aerospace.

Surface Finishing Needs for Plastic Materials

Nylon: Nylon typically requires Bead blasting or coating to improve surface hardness and abrasion resistance, and is used in applications requiring high mechanical strength.

Polycarbonate: Polycarbonate materials can be coated to improve their UV, heat and impact resistance for outdoor or high-intensity use.

PVC: PVC materials usually need to be sprayed, heat treatment and other methods to enhance their surface properties, especially chemical resistance and anti-aging.

IV. How to choose the appropriate surface treatment technology

Choose according to the application scenario

For parts requiring enhanced corrosion resistance, anodising and nickel-chromium plating are ideal. For parts that require an aesthetic and lustrous surface, electrolytic polishing or coating treatment is available.

In some high-performance areas, such as the aerospace, automotive or medical industries, surface treatments must not only fulfil corrosion resistance, but also take into account the strength, stability and appearance of the material.

Selection according to material properties

For different materials (e.g. metals, plastics, alloys), it is crucial to choose a surface treatment that is compatible with them. For aluminium alloys, anodising is more common, while for plastics, Bead blasting and coating are more appropriate.

Balancing Cost and Effectiveness

The cost of various surface treatment technologies varies greatly, so companies need to choose according to their project budget and needs. For example, anodising provides good corrosion resistance but is more costly, while Bead blasting is a lower cost option with significant results.

V. Advantages of JLCCNC's surface treatment technology

High quality machining and surface treatment

JLCCNC provides high quality CNC machining services to ensure that the surface treatment of parts and processing of high-high quality requirements to ensure that the final product meets the quality standards of customers.

Wide range of material selection and processing technology

JLCCNC has a wide range of material selection and surface treatment technology, and can provide customers with personalised machining solutions for aluminium alloy, stainless steel, plastics and other materials to meet the needs of different industries.

Fast Delivery and Quality Assurance

JLCCNC's CNC machining services start from as little as $1 and can be delivered in as little as 3 days, ensuring that customers get the customised parts they need efficiently.

Customised Service and Technical Support

JLCCNC provides customers with full technical support to help them choose the most appropriate surface treatment solution for their specific needs, ensuring the successful completion of each machining project.

VI. Conclusion

Surface treatment technology in the CNC machining process is of great significance, it can not only improve the appearance of the quality of the part, but also significantly enhance its durability and performance. By choosing the right surface treatment technology, companies can optimise the cost-effectiveness of their parts while meeting functional requirements. jlccnc, with its rich technical experience and efficient production capacity, is able to provide customers with precise machining and surface treatment solutions to ensure that every product meets the expected quality standards.