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CNC Machining eBook

If you want to produce high-quality machined parts with a sleek appearance, it’s essential to consider some critical factors related to CNC machining. 

 

Here, we’ve gathered some basic information and important considerations to help you achieve the desired results.

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PMMA (Acrylic)

Introduction to PMMA

PMMA parts

PMMA, also known as acrylic, is a transparent thermoplastic. One of the most widely used plastics in the world, PMMA demonstrates good chemical stability, mechanical properties and weather resistance. The material is also easy to process and to dye.

 

Because of its transparency, PMMA is often used as an alternative to glass and is popular in the interior design, construction and chemical industries. It is also regularly used in advertising to fabricate signage, lightboxes and billboards.

Information of PMMA

Features Info
Color

Optically clear, opaque

Process

CNC machining, injection molding

Tolerance

With drawing: as low as +/- 0.005 mm No drawing: ISO 2768 medium

Applications

Tanks, panels, and optical applications

Price

$

Material Properties

Tensile Strength

Elongation at Break

Hardness Density

Maximum Temp

PMMA (Acrylic) 8,000 PSI 6% Rockwell M95 1.19 g/㎤ 0.043 lbs / cu. in. 170° F

 

Surface Finishes for Your Choosing

Name Description Materials Color Texture Link
surface finish bead blast

Bead Blasting

Bead blasting results in parts with a smooth surface with a matte texture. Used mainly for visual applications and can be followed by other surface treatments.

ABS, Aluminum, Brass, Stainless Steel, Steel

n/a Matte Learn more
surface finish polishing
Polishing

Ranging from Ra 0.8~Ra0.1, polishing processes use an abrasive material to rub the part’s surface to make the shine more less shiny, depending on your requirements.

All materials

 n/a

Smooth, glossy finish

surface finish painting
Painting Painting involves spraying a layer of paint onto the surface of the part. Colors can be matched to a Pantone color number of the customer’s choosing, while finishes range from matte to gloss to metallic.

Aluminum, Stainless Steel, Steel

Custom

Gloss, semi-gloss, flat, metallic, textured

Gallery of PMMA Plastic Parts

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