ABS Plastic Machining for Custom Parts

From functional prototypes to low-volume production parts.

ABS CNC machining turns versatile thermoplastic stock into housings, covers, fixtures, and other custom components.

Illustrative black ABS plastic enclosure and rectangular stock block

Illustration · Representative material, component and finish examples, not production records. Final material condition and finish are confirmed for each project.

Commonly Used Plastic Materials

About ABS

ABS, or acrylonitrile butadiene styrene, is a thermoplastic with a useful balance of toughness, stiffness, and machinability. It is commonly selected for housings, covers, fixtures, and components that need both functional testing and a finished appearance.

For ABS plastic prototyping and low-volume manufacturing, the selected grade, stock form, and part geometry influence the machining process and finished results.

Price: Based on material, geometry, and quantity
Lead Time: Confirmed during quotation
Wall Thickness: Reviewed according to geometry and process
Tolerances: Reviewed against drawing requirements
Max Part Size: Dependent on stock size, machine travel, and part geometry
Available ABS: General-purpose, machine-grade, and flame-retardant options; black and natural colors, subject to confirmation

General-Purpose ABS A versatile material option for general-purpose ABS plastic parts that require a balance of toughness, stiffness, and appearance.

Reference Example IRPC GA850, injection-molding resin Tensile Strength at Yield 49 MPa, ASTM D638 Elongation at Break 20%, ASTM D638 Density 1.05 g/cm³, ASTM D792 Thermal Property HDT 86°C at 1.82 MPa, ASTM D648; unannealed, 6.4 mm specimen Flammability UL 94 HB at 1.5 mm, as reported by the manufacturer

Machine-Grade ABS Machinable ABS stock can be considered for housings, fixtures, and prototype components with milled or turned features.

Reference Example Ensinger TECARAN ABS natural, machining stock Tensile Strength at Yield 40 MPa, ASTM D638 Elongation at Break 30%, ASTM D638 Density 1.02 g/cm³ Thermal Property HDT approximately 81°C at 1.82 MPa, ASTM D648 Flammability UL 94 HB, as reported by the manufacturer; test thickness not stated

Flame-Retardant ABS Flame-retardant formulations can be considered when a project specifies material flammability requirements.

Reference Example Röchling Maywoflamm ABS V0 Tensile Strength at Yield 36 MPa, ISO 527 Elongation at Break 60%, ISO 527 Density 1.20 g/cm³, ISO 1183-1 Thermal Property Vicat B softening temperature 95°C, ISO 306 Flammability UL 94 V-0 at 1.6 mm, as reported by the manufacturer

Black ABS Black ABS is a color option for parts where a dark appearance is preferred. Properties depend on the selected formulation and stock.

Reference Example Ensinger TECARAN ABS black, machining stock Tensile Strength at Yield 38 MPa, ASTM D638 Elongation at Break 25%, ASTM D638 Density 1.03 g/cm³ Thermal Property HDT approximately 81°C at 1.82 MPa, ASTM D648 Flammability UL 94 HB, as reported by the manufacturer; test thickness not stated

Natural ABS Natural ABS provides a light-colored material option for functional components and parts requiring additional cosmetic finishing.

The values above are manufacturer reference examples for specific grades, not guaranteed properties for every ABS material. Black and natural are color options that may overlap with other material categories. Availability, material form, test methods, and certification requirements should be confirmed for each project.

View More ABS Options

Advantages & Considerations of ABS

Advantages

Impact Resistance: ABS offers useful toughness for housings, covers, fixtures, and components subject to handling or moderate impact.
Machinability: ABS stock can be milled, turned, and drilled to produce custom features for prototypes and low-volume parts.
Material Stability: Its balance of stiffness and toughness makes ABS a practical option for assembly checks and functional evaluation.
Finishing Versatility: Compatible options such as sanding, polishing, and painting can be considered for the required appearance.
Cost-to-Performance Balance: ABS offers a practical material choice for many projects that do not require the properties of higher-performance plastics.

Considerations

Temperature Limits: Review operating temperatures and nearby heat sources against the selected grade’s data.
UV Exposure: Standard ABS may degrade during prolonged outdoor exposure. Consider a suitable grade or protective finish where needed.
Chemical Compatibility: Some solvents and chemicals can cause swelling or cracking. Check compatibility with the selected grade and service environment.

Common Applications
of ABS

Illustration of a lightweight pocketed bracket, spacer and compact sensor mount

Aerospace

Aerospace prototypes and custom parts for engineering evaluation.

Illustration of a generic machined housing, shaft and mounting bracket for vehicle development

Automotive

Custom automotive parts for prototypes and low-volume production.

Illustration of a molded plastic housing, metal trim frame and formed mounting plate

Electronic Appliances

Custom appliance parts and enclosures for product development.

Illustration of an enclosure panel, mounting bracket and white polymer equipment fixture

Medical

Medical device prototypes, custom housings, and mechanical components.

Illustration of metal gripper fingers, a sensor bracket and a precision fixture block

Automation

Custom robotic parts, fixtures, and automation equipment components.

Surface Finishing Options
for ABS

Machined metal component with circular bore, mounting holes, and visible tool marks

As Machined

CNC machined surfaces retaining tool marks without additional cosmetic finishing.

Illustrative matte blasted metal bracket and surface coupon

Sand Blasting

Abrasive blasting for matte textures and metal surface preparation before coating.

Illustrative deburred washers and brackets beside ceramic finishing media

Tumbling

Batch deburring, edge rounding, and surface smoothing for suitable manufactured parts.

Illustrative gray and blue painted panels beside a blue enclosure cover

Painting

Industrial painting for specified colors, gloss levels, and application-specific surface protection.

Illustrative bright metal ring, curved cover and satin sample plate

Polishing

Mechanical polishing for smoother surfaces and satin, bright, or mirror finishes.

Our Commitment

Project Support for Custom ABS Parts

GD Prototyping brings material guidance, machining, finishing, and inspection together to support custom ABS plastic parts from quotation through delivery.

Material & Documentation Review

Review the requested ABS grade, stock form, and material documentation requirements before production.

ABS Plastic Material Selection

Consider material options against part function, appearance, operating conditions, and project requirements.

Machining to Your Drawings

Plan ABS CNC milling and ABS CNC turning around part geometry, critical features, and drawing requirements.

Surface Finish Coordination

Review ABS plastic surface finishing options, including painting and polishing, against the selected material and appearance requirements.

Inspection Against Requirements

Check critical dimensions and specified surfaces according to the agreed inspection requirements.

Project & Delivery Coordination

Confirm project details, packaging needs, and delivery arrangements throughout the manufacturing process.

Ready to Machine Your ABS Parts?

Share your CAD files, quantity, and finishing requirements for an ABS machining quote and engineering review.

Engineering Review
Material Guidance
Inspection Planning

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