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
Plastics Materials
3D Printing in Resin
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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Resin
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
- Casting sculptures, jewelry embedding, high-gloss coatings, roofing tiles, adhesives, automotive components, electronic encapsulation, dental fillings
- Strengths
- Chemical resistance (acids/alkalis/solvents), Durability (high impact resistance), Thermal/sound insulation, Optical clarity, Strong adhesion to various materials
- Weaknesses
- Heat sensitivity (degrades above 80-120°C), Brittleness at low temperatures, VOC emissions during curing, UV degradation (yellowing/weakening)
- Process compatibility
- Compression molding, encapsulation, injection molding, extrusion, SLA 3D printing, hand-pouring
- Surface Treatment
- Sanding, polishing, acetone vapor smoothing, sodium etching, UV-resistant lamination, epoxy sealing, painting
Characteristics
- Price
- $20-300/kg (standard: $20-50/kg, premium/medical: $100-300/kg)
- Lead Time
- 5-25 days (standard: 5-10 days, custom formulations: 15-25 days)
- Wall Thickness
- 0.1-15mm (casting/art: 0.5-10mm, structural: 2-15mm, thin films: 0.1-0.5mm)
- Tolerances
- ±0.1-0.5mm (±0.004-0.02") (casting/handwork: ±0.5mm, injection molding: ±0.1mm, SLA printing: ±0.15mm)
- Max part size
- Unlimited length × 2000mm width (casting/extrusion), 600×600×200mm (molding), 500×500×500mm (SLA printing)
Resin
| Category & Representative Models | Key Characteristics | Primary Applications |
|---|---|---|
| UV Pressure-Sensitive Adhesive Resins (e.g., MPUA4920, Resin21SE) | • Functionality: 1-2 groups • Viscosity: 500–60,000 cps • Curing: UV/EB dual-curing • Peel Strength: High tack with stringing effect | • Optically clear adhesive tapes • Medical conductive films • Electronic component fixation |
| UV Elastic Resins (e.g., Resin300, Resin600) | • Elongation at Break: 250%–500% • Hardness: 50A–60A (Shore) • Resilience: High-rebound soft texture • Compatibility: Full monomer system adaptation | • Flexible sealants • Shock-absorbing pads • Stretchable electronic encapsulation |
| Precision Casting Resins (e.g., True Cast Resin) | • Ash Content: ≤0.03% • Applicable Thickness: ≤5mm • Thermal Expansion: Near-zero shrinkage • Surface Finish: Ra≤1μm | • Jewelry micro-molds • Dental implant prototypes • Aerospace precision components |
| Flame-Retardant Epoxy (e.g., RIPOXY® S-520EX) | • Oxygen Index (OI): 28 • Chemical Resistance: Acids/alkalies/solvents • HDT: 110-115°C • Flexural Strength: 135-150 MPa | • Chemical corrosion pipelines • Flame-retardant insulation • Marine corrosion chambers |
| High-Weathering Epoxy (e.g., Wenyou LE/LH) | • Compressive Strength: 140-185 N/mm² • Thermal Degradation: 320°C • UV Stability: >10 years outdoor • Viscosity: 9,500-15,500 mPa·s | • High-voltage transformers • Outdoor insulators • Aerospace sensors |
| Property | Test Standard | UV PSA Resins | Casting Resins | Flame-Retardant Epoxy |
|---|---|---|---|---|
| Viscosity (25°C) | ISO 3219 | 500–60,000 cps | — | 3.0–5.0 dPa·s |
| Tensile Strength | ISO 527 | — | — | 70–85 MPa |
| Flexural Strength | ISO 178 | — | — | 135–150 MPa |
| HDT @0.45 MPa | ASTM D648 | — | — | 110–115°C |
| Elongation at Break | ISO 527 | — | — | 4.0–6.0% |
| Oxygen Index (O.I.) | ISO 4589 | — | — | 28 |
| Ash Content | ASTM D5630 | — | ≤0.03% | — |
Critical Processing Requirements
•UV Curing Control: Mono-functional resins (e.g., MPUA4920) provide high tack; difunctional resins enhance cross-linking elasticity
•Low-Ash Casting: 0.03% ash content (vs conventional 0.1-0.5%) prevents casting defects and ensures complete mold burnout
•Epoxy Curing Cycle: High-temp curing (120°C/2h) decomposes residual monomers for medical/food-contact compliance
Performance Limitations & Solutions
•Chemical Vulnerability: Epoxy resins swell in ketones/aromatics; reinforced formulations maintain integrity in corrosive environments
•UV Degradation: High-weathering epoxies maintain stability through aromatic backbone modification and UV absorbers
•Precision Limitations: ≤5mm casting thickness requires nano-silica additives to control viscosity-induced flow restrictions
Safety & Compliance
•Medical Certification: UV resins require USP Class VI and FDA 21CFR 177.2415 compliance for implant applications
•Flame Standards: Industrial epoxies must meet ASTM E84 Class B flame spread ratings for building codes
•Electrical Safety: Transformer encapsulation resins require IEC 60296 dielectric strength ≥30 kV/mm
RESIN for 3D Printing 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 3D Resin 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.
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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.
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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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