PMMA (Acrylic) CNC Machining Service
Get precision PMMA (Acrylic) CNC machined parts with outstanding optical clarity, dimensional accuracy, and surface quality. Our CNC machining capabilities produce detailed prototypes and production components with complex geometries, tight tolerances, and smooth finishes. PMMA is an excellent choice for transparent covers, display components, optical parts, enclosures, and other applications where appearance and precision are essential.
PMMA (Acrylic) in CNC Machining
PMMA (Polymethyl Methacrylate), commonly known as Acrílico, is a lightweight engineering thermoplastic valued for its exceptional optical clarity, dimensional stability, and attractive surface finish. It machines cleanly and can be shaped into detailed components with accurate features and polished surfaces. PMMA is an excellent choice for transparent housings, display components, protective covers, light guides, optical parts, and precision prototypes where both appearance and functionality are important.
| Available PMMA Grades | PMMA Black, PMMA Transparent, PMMA White |
| Preço | $ |
| Prazo de entrega | Menos de 10 dias |
| Espessura da parede | 0,75 mm |
| Tolerâncias | ±0,125 mm (±0,005 pol.) |
| Tamanho máximo da peça | 200 x 80 x 100 cm |
PMMA CNC Machining Materials
Machined Acrylic (PMMA) Properties
PMMA (Acrylic) is a transparent engineering thermoplastic known for its excellent optical clarity, weather resistance, and smooth surface finish. Its balanced properties make it suitable for CNC machined parts that require both visual appeal and reliable performance.
Tolerâncias gerais de usinagem CNC
| Descrição | Tolerância geral ou padrão |
|---|---|
| Tolerâncias dimensionais gerais | ±0,005″ (±0,127 mm) para metais; ±0,010″ (±0,254 mm) para plásticos, de acordo com a norma ISO 2768-mK, salvo indicação em contrário |
| Tolerâncias rígidas | Precisão de até ±0,001″ (±0,025 mm) disponível mediante solicitação, com desenhos 2D detalhados e especificações de GD&T |
| Tamanho mínimo do recurso | ~0,020″ (0,50 mm), dependendo da geometria da peça, do diâmetro da ferramenta e do material |
| Tolerância do diâmetro do furo | ±0,002″ (±0,05 mm) típico; tolerâncias mais estreitas com mandrilamento ou alargamento |
| Planicidade/Paralelismo | ≤0,002″ por 6″ (≤0,05 mm por 150 mm), varia de acordo com o material e a configuração do dispositivo de fixação |
| Tolerâncias de rosca | Roscas métricas e imperiais padrão conforme ISO/ASME; roscas personalizadas ou finas disponíveis mediante solicitação |
| Tolerância angular | ±0,5° típico |
| Condição da borda | As bordas afiadas são quebradas e rebarbadas por padrão, salvo indicação em contrário |
| Acabamento da superfície (padrão) | Ra 3,2 μm (125 μin) como usinado; acabamentos aprimorados disponíveis por meio de polimento, jateamento de esferas, anodização, etc. |
| Tamanho máximo da peça | Fresagem: Até 80″ × 48″ × 24″ (2.032 × 1.219 × 610 mm) Torneamento: Até 62″ de comprimento × 32″ de diâmetro (1.575 × 813 mm) |
Advantages and Limitations of PMMA (Acrylic) CNC Machining
Brass machining offers numerous advantages, making it a popular choice for various industries. However, it is essential to consider both the benefits and limitations to determine if it is the right material for your specific application.
- Exceptional Machinability: Brass is highly machinable, allowing for precise and efficient machining.
- Resistência à corrosão: It offers high resistance to corrosion, making it suitable for harsh environments.
- Aesthetic Appeal: Its appearance is attractive and ideal for decorative and aesthetic applications.
- Good Conductivity: Brass has excellent thermal and electrical conductivity.
- Versatility: Brass can also be used in various industries, from electronics to plumbing.
- Higher Material Cost: Brass can be more expensive compared to some other metals.
- Potential for Dezincification: In certain environments, brass can suffer from loss of zinc, leading to weakened material.
Dê vida aos seus projetos com a Elite Mold Tech
Experimente a usinagem CNC de precisão com a Elite Mold Tech. De protótipos complexos à produção em larga escala, estamos prontos para transformar suas ideias em realidade. Entre em contato conosco hoje mesmo para discutir as necessidades do seu projeto!
- Conhecimento especializado compartilhado amplamente
- Ampliação do alcance do mercado
- Tecnologia avançada integrada
- Oportunidades de inovação colaborativa
- Soluções confiáveis sob demanda
- Todos os uploads são seguros e confidenciais
PMMA (Acrylic) CNC Machining FAQs
What speed is optimal for CNC machining acrylic?
The ideal CNC machining speed for acrylic depends on the part design, thickness, tooling, and required finish. Using higher spindle speeds with proper feed rates helps achieve smooth cuts while reducing the risk of cracking, melting, or chipping.
Which CNC tool is most effective for cutting acrylic?
Carbide and diamond-coated cutting tools are commonly used for acrylic CNC machining. These tools provide clean cuts, improve surface quality, and help reduce chipping during the machining process.
Is PMMA (Polymethyl Methacrylate) durable?
Yes, PMMA offers good durability along with excellent UV and weather resistance. It is suitable for indoor and outdoor applications where long-term clarity and stable performance are required.
Are CNC routers capable of cutting acrylic?
Yes, CNC routers can effectively machine acrylic when the correct tools and machining parameters are used. Proper cutting speed, feed rate, and tooling selection help achieve accurate parts with smooth finishes.