Industria JST

Provides machining services for a wide range of materials

CNC Machining Material Introduction

CNC machining, or computer numerical control machining, is an automated machining technology that realizes high precision and high efficiency by controlling the trajectory of the machine tool through a computer program. In modern manufacturing, CNC machining Materials has become an indispensable means of manufacturing because of its ability to meet the needs of mass production of complex parts. However, the quality and efficiency of CNC machining depends largely on the material selected.

CNC Machining Material Introduction

Material selection is critical to CNC machining and is directly related to the functionality, durability, cost-effectiveness, and ultimately the competitiveness of the product in the marketplace. Correct material selection ensures a smooth machining process, reduces production defects and scrap rates, and also enhances product performance and service life. For example, aluminum alloys are commonly used in aerospace and automotive manufacturing due to their light weight and good mechanical properties, while stainless steel is widely used in chemicals and medical devices due to its excellent corrosion resistance.

In addition, the physicochemical properties of the material, such as hardness, temperature resistance, wear resistance and heat treatment characteristics, are also factors to consider when CNC machining. Different material properties determine their specific requirements for cutting speed, tool selection and cooling methods during machining. Therefore, an in-depth understanding of the properties of various materials is important for optimizing CNC machining processes and improving product quality.

At JST Industry, we offer comprehensive CNC machining services and have extensive experience in material machining. We encourage our customers to communicate with our engineers at the design stage in order to provide them with expert material selection advice and machining solutions to ensure that their products are manufactured both economically and efficiently. Through careful material selection and precise CNC machining, we help our customers’ products stand out in the marketplace.

CNC Machining Material Compare

In the machining industry, different materials exhibit different machining characteristics and applications during CNC machining due to their unique physical and chemical properties. The following is a detailed comparison of the differences and variations in CNC machining of aluminum, stainless steel, brass, alloys and plastics:

Aluminum

Aluminum

Lightweight: Aluminum alloys have a low density, which makes them popular in applications where weight reduction is required, such as aerospace and automotive manufacturing.

High Thermal Conductivity: Aluminum alloys have excellent thermal conductivity, making them ideal for parts that need to dissipate heat quickly, such as radiators or heat exchangers.

Machinability: Aluminum alloys are easy to cut and form, but CNC machining generates a lot of heat and requires careful cooling to prevent distortion.

Stainless Steel

Stainless Steel

Corrosion Resistance: Stainless steel is highly resistant to corrosion and oxidation, making it suitable for use in chemical, medical and food processing applications with high sanitary standards.

Strength: Stainless steel has a high degree of strength and hardness, making it excellent in environments subject to heavy loads or high stress.

Machining Difficulty: Stainless steel is relatively difficult to machine, requiring the use of more abrasion-resistant cutting tools, and cooling and lubrication are more important during the machining process.

Stainless Steel

Brass

Mechanical Properties: Brass has good mechanical properties, including high strength and excellent cold working properties.

Aesthetics: Brass has a distinctive golden appearance and is often used for decorative parts or applications requiring good electrical conductivity.

Machining Characteristics: Brass has slower cutting speeds than aluminum alloys during CNC machining, but still maintains good machinability.

Plastic

Alloys (Alloy)

Application-specific Advantages: Depending on their composition and proportions, different alloys exhibit different properties, such as high strength, toughness, or resistance to high temperatures.

Versatility: Alloys are available in a wide variety of materials and can be customized to meet the needs of specific applications.

Machining Requirements: CNC machining of alloys may require special tooling and machining parameters to accommodate their hardness and heat treatment properties.

Alloys (Alloy)

Plastic

Versatility: Plastics range from general-purpose to engineering plastics, each with unique properties and applications.

Cost Effective: Plastics are generally low cost and easy to mass produce for cost-sensitive applications.

Ease of Machining: CNC machining of plastics is relatively simple and does not require the same high cutting forces as metals, but care needs to be taken to prevent thermal distortion during machining.

Service Feedback​​​​​​​

Emily Thompson - Material Selection & Cost Effectiveness

“I am extremely satisfied with the CNC machining services provided by JST Industry. Their team of experts has been of great help in material selection, enabling us to find materials that meet the performance requirements as well as being cost effective. In particular, they provided a thorough analysis of the choice between aluminum alloy and stainless steel, which helped us keep our product lightweight and corrosion-resistant while effectively controlling costs. Throughout the process, I was impressed by the professionalism and attention to customer needs demonstrated by JST Industry.”

“In the early stages of design, we were concerned that CNC machining might not be able to meet our stringent requirements for product accuracy. However, JST Industry completely allayed our concerns through their precision machining technology and careful design optimization suggestions. Their machining tolerances were so precisely controlled that the size and quality of the final product far exceeded our expectations. In addition, their design suggestions for reducing machining costs were very practical, which played a key role in optimizing our product design and reducing overall costs.”

“JST Industry has done an excellent job with the surface finish after CNC machining. Our products require fine surface quality and they not only offer a wide range of surface finish options, but also ensure high standards and consistency in every process. Every step of the process, from deburring to final surface coating, is subjected to stringent quality control, resulting in the delivery of parts with smooth, burr-free surfaces that fully meet our quality standards.”

“The overall experience with JST Industry has been great. Their customer service team is very professional and able to respond quickly to our needs and questions. The logistics arrangements were also very well organized and our products arrived safely and on time for both domestic and international shipments. In addition, they provide very careful product packaging that takes into account the fragility and weight of the products to ensure safety during transportation. Overall, JST Industry has not only excelled technically, but we are also very satisfied with their customer care and quality of service.”

Preguntas frecuentes

P: Estoy diseñando un nuevo producto que requiere mecanizado CNC para crear un prototipo y el producto final. Cómo selecciono el material más adecuado para el mecanizado CNC de mi proyecto?

R: En JST Industry, sabemos que elegir el material de mecanizado CNC adecuado es fundamental para el diseño del producto. En primer lugar, debe considerar el escenario en el que se utilizará su producto, incluidas las propiedades mecánicas requeridas, la resistencia a la temperatura, la resistencia a la corrosión y la rentabilidad. Ofrecemos una amplia gama de materiales, entre los que se incluyen aleaciones de aluminio, acero inoxidable, latón, diversas aleaciones y muchos plásticos. Nuestro equipo de expertos puede ayudarle a seleccionar el material más adecuado para sus necesidades específicas y proporcionarle asesoramiento experto en optimización del diseño para garantizar un proceso de mecanizado CNC eficaz y rentable.

Q: Me gustaría saber cómo afecta la selección de diferentes materiales en el proceso de mecanizado CNC al coste final del mecanizado.

En JST Industry, somos conscientes de que la selección del material tiene un impacto significativo en los costes de mecanizado CNC. El tipo de material, la dificultad de mecanizado y la disponibilidad en el mercado influyen en su precio. Por ejemplo, el acero se utiliza ampliamente debido a su menor coste, mientras que las aleaciones de titanio y ciertas aleaciones avanzadas son más caras debido a su mayor coste de material y dificultad de mecanizado. Además, la maquinabilidad del material también afecta al coste; por ejemplo, las aleaciones de aluminio suelen ser menos caras por su facilidad de mecanizado. Nuestro sistema de presupuestos tiene en cuenta todos estos factores para garantizarle la estimación de costes más precisa.

Q: ¿Cuáles son algunas prácticas de diseño que pueden ayudarme a reducir los costes de mecanizado al diseñar piezas mecanizadas con CNC?

R: JST Industry, con años de experiencia en el sector, ofrece las siguientes sugerencias de optimización del diseño para reducir los costes de mecanizado CNC:
Considere los ángulos rectos internos no funcionales en el diseño y cámbielos por ángulos R para reducir los costes de espacio libre.
Reduzca el número de posiciones de hueso en la pieza para minimizar el tiempo de mecanizado y la complejidad.
Aumentar el espesor de la pared cuando proceda para minimizar el riesgo de deformación de la pieza durante el mecanizado.
Utilice tamaños de orificios y roscas estándar siempre que sea posible para simplificar el proceso de mecanizado.
Colabore con nuestros ingenieros para seleccionar opciones de material y acabado económicamente viables.
Marque sólo las tolerancias necesarias y más importantes para el diseño a fin de evitar requisitos de precisión innecesarios.

P: Tengo requisitos estrictos de precisión en mis productos, ¿qué tolerancias pueden alcanzarse con el mecanizado CNC y cómo afecta esto a la calidad del producto final?

R: En JST Industry, nuestros servicios de mecanizado CNC son capaces de cumplir tolerancias extremadamente altas, a menudo de ±0,01 mm, gracias a nuestros avanzados equipos de mecanizado y estrictos procesos de control de calidad. Esta capacidad de mecanizado de alta precisión garantiza la consistencia y fiabilidad de las piezas, lo que es especialmente importante para los ensamblajes que requieren un ajuste de alta precisión. Nuestro sistema de garantía de calidad incluye múltiples inspecciones y calibraciones para asegurar que cada pieza se ajusta a los planos de diseño y las tolerancias del cliente, garantizando así la calidad del producto final.

P: Me preocupa que la superficie de una pieza mecanizada con CNC pueda tener rebabas o ser irregular. Cómo puedo asegurarme de que la superficie de la pieza mecanizada tenga la calidad deseada?

R: JST Industry utiliza una serie de avanzadas tecnologías de mecanizado y rigurosos procedimientos de postprocesado para garantizar la calidad de la superficie de las piezas mecanizadas mediante CNC. Nuestros operarios realizan un cuidadoso desbarbado tras
mecanizado, incluido el recorte a mano y el acabado a máquina, para garantizar que todas las piezas tengan una superficie lisa y sin ángulos. Además, utilizamos herramientas de medición de precisión para comprobar las dimensiones de las piezas varias veces y asegurarnos de que la precisión dimensional cumple los requisitos de tolerancia. Dependiendo de las necesidades de nuestros clientes, también ofrecemos una variedad de servicios de tratamiento de superficies, como anodizado, chapado, recubrimiento en polvo y pintura, para mejorar aún más la calidad del aspecto y la resistencia a la corrosión de las piezas. Gracias a estas medidas, podemos garantizar que la calidad de la superficie de cada pieza cumpla o supere las expectativas de nuestros clientes.

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