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ABS CNC Machining
ABS (Acrylonitrile Butadiene Styrene) is a tough, impact-resistant thermoplastic polymer composed of acrylonitrile, butadiene, and styrene.
introduction
ABS Materials in CNC Machining
ABS (Acrylonitrile Butadiene Styrene) is a tough, impact-resistant thermoplastic polymer composed of acrylonitrile, butadiene, and styrene.
This material is known for its durability, ability to withstand rough handling, and chemical resistance. ABS has a moderate density and hardness that’s why it can be easily machined and processed through methods like injection molding and extrusion. While it has good heat resistance, it may warp during large-scale manufacturing, and prolonged exposure to UV light can lead to degradation. Despite these limitations, ABS is widely used for toys, automotive parts, electronic housings, and household appliances.
Since ABS is a relatively soft material, tool wear is usually minimal compared to machining harder materials. ABS can be prone to stress concentration, so design features like sharp corners and edges should be avoided to prevent potential issues during machining and in the final product. ABS is often used in CNC machining for prototyping and functional parts due to its ease of machining and cost-effectiveness.
ABS Material List
TECHNOLOGY OVERVIEW
Basic Knowledge of ABS
What is ABS?
ABS, short for acrylonitrile butadiene styrene, is a widely used thermoplastic because of its affordability and exceptional toughness. CNC machining ABS offers a cost-effective method for shaping custom parts without the need for expensive molds.
Considering its economical nature, the machined ABS has impressive characteristics, such as toughness, rigidity, and shock absorbance. It possesses good dimensional stability and excellent impact strength. In terms of finish, machined ABS parts may have minor tool marks or swirls on the surface, giving them a distinctive appearance.
For those seeking a more matte finish, bead blasting with fine glass beads is an option to reduce shine. However, it's important to note that bead-blasting plastics may result in uneven surfaces or potential damage to finely detailed features.
Advantages of ABS
Impact resistance
Chemical resistance
Lightweight
Durable
Easy to process
Versatile
Low cost
Good dimensional stability
Electrical insulation properties
Recyclable
Applications of ABS
Automotive interior components
LEGO bricks
Protective gear (helmets, knee pads)
Electronic housings
Toys and games
Medical device components
Luggage shells
Power tool housings
Kitchen appliance parts
Pipe fittings
FAQ
Machining ABS Buying FAQ
ABS plastic is susceptible to UV (ultraviolet) radiation from the sun, leading to degradation and discoloration over time. While ABS has good overall durability, prolonged exposure to sunlight may cause it to become brittle and lose some of its mechanical properties. Stabilizers or coatings are needed for ABS formulations to enhance their UV resistance.
ABS plastic is generally considered safe for use with hot water, but there are limits to its temperature resistance. ABS has a heat deflection temperature (HDT) of around 176°F (80°C), so it can withstand relatively high temperatures. However, it's important to stay within the recommended temperature range for sustained use with hot water to prevent deformation or other issues.
ABS plastic is known for its toughness and impact resistance, making it less prone to breaking than other plastics. However, like any material, it has its limitations. The impact resistance of ABS can be affected by factors such as temperature and the presence of stress concentrations.
ABS is generally considered safe for use with potable water, and it meets regulatory standards for this application. However, ensuring that the ABS material complies with relevant food-grade and water-contact regulations is important. Also, proper manufacturing processes, such as avoiding additives that may leach into the water, are essential to maintain water safety.
Other Materials
Polypropylene(PP)
Polypropylene (PP) is a thermoplastic polymer with high chemical resistance, low density, good electrical insulation, and low cost.
More info about Polypropylene(PP)
PPSU
PPSU, or polyphenylsulphone, is an amorphous material that belongs to the polysulphone group. It has a high glass transition temperature and low moisture absorption.
More info about PPSU
PEI
A material that can maintain mechanical properties even in harsh conditions. PEI is best for electronic housings, connectors, electrical insulators, structural parts, and more.
More info about PEI
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