Precision Machining
- CNC Machining Service
- CNC Milling
- CNC Turning
- Automatic Turning
- Machining Screw/Rivet
- Wire EDM Machining
- Casting & CNC
- Aluminum Profile & CNC
- Cold Heading & CNC
LML Metal Products Ltd.No. D309, Yunchuang E Valley, No. 3 Huanshi West Road, Tangxia Town, Dongguan City, Guangdong,China
(86) 17833674102dlynn9527@gmail.com
Surface finishes
CNC Machining in Acrylic
High strength and toughness, fatigue resistant. Alloy steels incorporate additional alloying elements beyond carbon, leading to heightened hardness, toughness, fatigue resistance, and wear resistance
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Home / PMMA Acrylic
CNC Machining Acrylics Materials
Designers and engineers frequently choose aluminum and aluminum alloys for CNC machining and CNC milling parts. Makes sense. This all-purpose metal has been proven to offer:
- * Excellent machinability
- * High strength
- * Hardness
- * Heat tolerance
- * Corrosion resistance
- * Electrical conductivity
- * Low weight
- * Low cost
- * Overall versatility
Description
- Applications
- Aluminum has a wide range of applications from prototyping to automotive to aerospace.
- Strengths
- Good strength-to-weight ratio,Good mechanical properties
- Weaknesses
- More expensive than steel in general, more difficult to weld, weaker overall than other structural metals
- Process compatibility
- CNC machining
- Surface Treatment
- Anodizing +sandblasting
Characteristics
- Price
- Aluminum has a wide range of applications from prototyping to automotive to aerospace.
- Lead Time
- ＜7 days
- Wall Thickness
- 0.75mm
- Tolerances
- ±0.125mm (±0.005″)
- Max part size
- 200 x 80 x 100 cm
PMMA(Acrylic)
| Processing Technology | Process Characteristics | Suitable PMMA Grade | Applications |
|---|---|---|---|
| Injection Molding | Melt temperature: 220-260°C Mold pressure: 70-140 MPa Cooling rate: 20-40°C/min | Optical-grade Medium-high viscosity Impact-modified | Light covers Lenses Medical components |
| Extrusion | Melt temperature: 180-240°C Screw L/D ratio: 25-30:1 Sheet thickness: 0.5-12mm | UV-stabilized Low-medium viscosity Colored transparent | Signage sheets Lighting diffusers Display panels |
| Thermoforming | Sheet heating: 170-190°C Forming temperature: 150-170°C Depth/width ratio: <2:1 | Cast/extruded sheets Colored grades Flexible types | Aircraft canopies Protective covers Display stands |
| CNC Machining | Cutting speed: 100-300 m/min Feed rate: 0.1-0.5 mm/rev Coolant: air blast | Cast/Extruded plates Transparent grades High-purity PMMA | Precision optics Prototypes Custom components |
| Laser Cutting | CO₂ laser (9.3-10.6μm) Power: 60-120W Speed: 10-50 mm/s (3mm) | Transparent grades Tinted sheets Matte finish | Signage letters Decorative elements Model parts |
| Cast Molding | Reaction temp: 40-60°C Curing time: 4-48 hours Atmospheric pressure | Casting resins Monomer systems Low shrinkage | Bathtubs/sinks Sculptures Thick optics |
| Property | Test Standard | General Grade | Impact Modified | Heat Resistant |
|---|---|---|---|---|
| Tensile Strength | ASTM D638 | 50-77 MPa | 45-65 MPa | 60-85 MPa |
| Flexural Strength | ASTM D790 | 90-117 MPa | 80-100 MPa | 100-130 MPa |
| Impact Strength | ASTM D256 | 2-3 kJ/m² | 15-20 kJ/m² | 4-6 kJ/m² |
| HDT (0.45MPa) | ASTM D648 | 85-102°C | 90-100°C | 120-135°C |
| Light Transmittance | ASTM D1003 | 92% | 89-91% | 90-91% |
| Refractive Index | ASTM D542 | 1.49-1.56 | 1.49-1.56 | 1.49-1.56 |
Key Technical Notes
•Material Drying Required:PMMA must be dried at 80-90°C for 2-4 hours before processing (moisture ≤0.04%)
•Thermal Sensitivity:Max processing temperature 280°C; degradation occurs rapidly above this temperature
•Glass Transition Temp:Tg = 105°C (defines continuous use temperature <90°C)
Processing Recommendations
•For thin-wall parts (<2mm):Increase melt temp to 240-260°C and mold temp to 80°C
•Mold Requirements:High polish surfaces (Ra ≤0.1μm) needed for optical clarity applications
•Gate Design:Should be at least 80% of part thickness; use submarine/tunnel gates
Post-Processing & Quality Control
•Annealing:80-90°C for 1-4 hours to relieve internal stresses
•Solvent Vapor Polishing:Use chloroform or dichloromethane vapor for optical quality surface
•UV Stability:Coatings required for outdoor applications; maintain transmittance >88% after 10 years
Acrylics for Machining
LML offers several aluminum alloys in its long list of available manufacturing materials. Two of those alloys are especially well-suited material options for CNC machining, whether milling or turning: Aluminum 6061 and 7075.Aluminum 7075 T651 and T7: Benefits include high strength, hardness, low weight, corrosion resistance, and high heat tolerance. See data sheet for more information.Aluminum 2024 T3: This high-strength alloy offers a high strength-to-weight ratio and high corrosion resistance. See data sheet for more information.GET INSTANT QUOTE
Gallery of Acrylics Parts Manufactured by LML
The color of anodized finishes may exhibit some degree of variation due to standard alloy tolerance differences. Please refer to the color scheme below to observe the range of available colors.
Acrylics for Machining
CNC machined
Aluminum is a relatively easy metal to machine which makes it great for CNC machining. Aluminum has useful properties for machining such as being lightweight, malleable, tractable and overall good durability. It being so light and easy to work with means that it can be used for a wide variety of applications. CNC machined Aluminum parts begin as a raw piece of metal which is cut down bit by bit to create a desired shape or object. This process is done most accurately with a CNC (Computerized Numerical Control) machine which can produce almost any three dimensional object designed via CAD (Computer Aided Design) software.
Acrylics machine shops
Our broad network of manufacturing partners includes over 240 Aluminum machine shops. Having this huge capacity and wide range of machinery available lets us fulfill a massive variety of orders and produce very complex parts. Our machine shops can produce custom Aluminum parts with CNC turning machines and 3- & 5-axis CNC milling machines. Our machine shops offer 13 different types of Aluminum: Aluminum 6061-T6, Aluminum 7075-T6, Aluminum 6082, Aluminum 5083, Aluminum 6063, Aluminum 5052, Aluminum 2024, Aluminum 7050, Aluminum MIC6, Aluminum 2017, Aluminum A380 and Aluminum 2014.
Alcrylics machining services
We offer a complete Aluminum CNC machining service and can produce complex Aluminum parts with 13 different types of Aluminum. Aluminum parts are great for applications that require high strength, corrosion resistance, heat tolerance, low weight, electrical conductivity, and overall versatility. We work with almost every kind of CNC mill and turning center, and are able to machine simple, “as-machined” workholdings to complex, organic geometries with tight tolerances. With our Aluminum CNC machining services, you can apply up to 13 different post-processing/surface finishing options, including bead blasting, anodizing types II and III, powder coating and electroless nickel plating.
Customer Case
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Read more about quality assuranceFAQs
LML takes the stress out of manufacturing by guaranteeing the quality and consistency of every part. Each order is dimensionally and visually inspected by our in-house quality control team to make sure it meets the LML Standard. If you’re not satisfied with your order, we’ll remake your parts as fast as possible, free of charge, or refund you - whichever you prefer.
- Why 5-Axis CNC Machining Has Superior Advatages?"5-Axis" generally refers to the ability of a CNC machine to move the tool in five directions, which belongs to a high precision production technology.
- GALLERY OF CNC MACHINED PARTSGALLERY OF CNC MACHINED PARTS
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LML Metal Products Ltd.No. D309, Yunchuang E Valley, No. 3 Huanshi West Road, Tangxia Town, Dongguan City, Guangdong,China
(86) 17833674102dlynn9527@gmail.com
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