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Laser Welding of PBT Plastics: A Comprehensive Overview
Release time：2025-06-17Author：小编
| What are the PBT material models for laser welding? | |||
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Plasthill Oy
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Laser Weldable |
Acrylonitrile Butadiene Styrene (ABS)
|
Kareline® ABMS6040 |
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Eastman Chemical Company
|
Laser Weldable |
Copolyester
|
Eastar™ DG021 |
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Eastman Chemical Company
|
Laser Weldable |
Copolyester
|
Eastar™ DG011 |
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Celanese Corporation
|
Laser Weldable |
Liquid Crystal Polymer (LCP)
|
Zenite® 350 LDS |
|
Evonik Industries AG
|
Laser Weldable |
Polyamide 12 (Nylon 12)
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VESTAMID® L L-GF30 BK E70285 |
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Avient Corporation
|
Laser Weldable |
Polyamide 6 (Nylon 6)
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Bergamid™ B70 G30 black VN8115CF LT |
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LyondellBasell Industries
|
Laser Weldable |
Polyamide 6 (Nylon 6)
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Schulamid 6 GF15 HI H LW BKR968069 |
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AKRO-PLASTIC GmbH
|
Laser Weldable |
Polyamide 6 (Nylon 6)
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AKROMID® B28 GF 30 6 LT black (6931) |
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Envalior
|
Laser Weldable |
Polyamide 6 (Nylon 6)
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Durethan® BKV30XWPHV |
|
Envalior
|
Laser Weldable |
Polyamide 6 (Nylon 6)
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Durethan® BKV35XWPXT |
|
Envalior
|
Laser Weldable |
Polyamide 6 (Nylon 6)
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Durethan® BKV30XWPLT |
|
Envalior
|
Laser Weldable |
Polyamide 6 (Nylon 6)
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Durethan® BKV30XWPXT |
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LyondellBasell Industries
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Schulamid 66 GF25 H LW BLK968069 |
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Celanese Corporation
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Zytel® 70G35EF BK538 |
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Celanese Corporation
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Zytel® 70G35HSLR BK416LM |
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LyondellBasell Industries
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Schulamid 66 GF25 H LW CN BLK968069 |
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LyondellBasell Industries
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Schulamid 66 GF 25 H LW BLK968069 |
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AKRO-PLASTIC GmbH
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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AKROMID® A3 GF 40 1 LT black (5709) |
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Ascend Performance Materials Operations LLC
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Starflam® FR350J BK0802 |
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Ascend Performance Materials Operations LLC
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Vydyne® R530H BK0917LT |
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Avient Corporation
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Bergamid™ BG6600-8118 RS LW BK001 |
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Ascend Performance Materials Operations LLC
|
Laser Weldable |
Polyamide 66 (Nylon 66)
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Vydyne® R535H BK0932LT |
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AKRO-PLASTIC GmbH
|
Laser Weldable |
Polyamide 66 + PA 6I/6T (Nylon 66+Nylon 6I/6T)
|
AKROLOY® PA GF 50 natural (7573) |
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DOMO Engineering Plastics
|
Laser Weldable |
Polyamide 66/6T Copolymer (Nylon 66/6T)
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TECHNYL® ONE J 60X1 V30 BK |
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DOMO Engineering Plastics
|
Laser Weldable |
Polyamide 66/6T Copolymer (Nylon 66/6T)
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TECHNYL® ONE J 60X1 V30 GY 7035 LPU |
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DOMO Engineering Plastics
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Laser Weldable |
Polyamide 66/6T Copolymer (Nylon 66/6T)
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TECHNYL® ONE J 60X1 V30 GY 2683 LP |
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DOMO Engineering Plastics
|
Laser Weldable |
Polyamide 66/6T Copolymer (Nylon 66/6T)
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TECHNYL® ONE J 60X1 V30 GY 2682 LP |
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DOMO Engineering Plastics
|
Laser Weldable |
Polyamide 66/6T Copolymer (Nylon 66/6T)
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TECHNYL® ONE J 60X1 V30 WT 9003 LPU |
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Celanese Corporation
|
Laser Weldable |
Polyamide, Unspecified (Nylon, Unspecified)
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Zytel® HTN 330 NC010 |
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Celanese Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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Crastin® LW9030 NC010 |
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Celanese Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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Crastin® LW9030 BK851 |
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Celanese Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
Crastin® LW9320 BK851 |
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Celanese Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
Crastin® LW9330 BK851 |
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Celanese Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
Crastin® LW9320LM BK591 |
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SITRAPLAS GmbH
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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SITRADUR GF20 / C94150 (PBT) |
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SABIC
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
LNP™ THERMOCOMP™ Compound WFC06IXP |
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SABIC
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
LNP™ THERMOCOMP™ Compound WFC06I |
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Envalior
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
Arnite® LT TV4 261 |
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Envalior
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
Pocan® B3223HRLT |
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Envalior
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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Pocan® B3233HRLT |
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Envalior
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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Pocan® B3216HRLT |
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BASF Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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Ultradur® LUX B 4300 G4 |
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BASF Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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Ultradur® LUX B 4300 G6 |
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BASF Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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Ultradur® LUX B 4520 |
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Chang Chun Plastics Co., Ltd. (CCP Group)
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
LONGLITE® PBT 6030-104LW |
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Chang Chun Plastics Co., Ltd. (CCP Group)
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
LONGLITE® PBT 6030-104LWR |
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Chang Chun Plastics Co., Ltd. (CCP Group)
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
LONGLITE® PBT 3030-200LW |
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Envalior
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
|
Pocan® ECOB3233HRLT |
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Celanese Corporation
|
Laser Weldable |
Polybutylene Terephthalate (PBT)
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Crastin® SLW9230 BK218LT |
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LyondellBasell Industries
|
Laser Weldable |
Polybutylene Terephthalate + PET (PBT+PET)
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Schuladur A1 GF30 LW K2307 BLK968069 |
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LyondellBasell Industries
|
Laser Weldable |
Polybutylene Terephthalate + PET (PBT+PET)
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Schuladur A1 GF 30 LW CN1 BLK |
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Mitsubishi Chemical Corporation
|
Laser Weldable |
Polybutylene Terephthalate + PS (PBT+PS)
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NOVADURAN™ 5810G30 NA (Natural Color) |
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Mitsubishi Chemical Corporation
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Laser Weldable |
Polybutylene Terephthalate + PS (PBT+PS)
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NOVADURAN™ 5810G30LW-BK |
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Polyplastics
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Laser Weldable |
Polycarbonate + PBT (PC+PBT)
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DURANEX® 330LW |
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Polyplastics
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Laser Weldable |
Polycarbonate + PBT (PC+PBT)
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DURANEX® 730LW |
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Toray Industries, Inc.
|
Laser Weldable |
Polycarbonate + PBT (PC+PBT)
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Toraycon™ 4158G30H SG2 |
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Mitsubishi Chemical Advanced Materials
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Laser Weldable |
Polyethylene, Ultra High Molecular Weight (UHMWPE)
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TIVAR® CleanStat™ EC Food Grade UHMW-PE |
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AKRO-PLASTIC GmbH
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Laser Weldable |
Polyketone (PK)
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AKROTEK® PK-VM LT black (8143) |
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Asahi Kasei Corporation
|
Laser Weldable |
Polyphenylene Ether + PS (PPE+PS)
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XYRON™ CN51V |
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Toray Industries, Inc.
|
Laser Weldable |
Polyphenylene Sulfide (PPS)
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Torelina™ A602L X01 |
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Syensqo
|
Laser Weldable |
Polyphthalamide (PPA)
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Amodel® AS-4133 HS |
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Syensqo
|
Laser Weldable |
Polyphthalamide (PPA)
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Amodel® A-4145 HH |
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Syensqo
|
Laser Weldable |
Polyphthalamide (PPA)
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Amodel® A-4133 HH |
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LyondellBasell Industries
|
Laser Weldable |
Polypropylene Homopolymer (PP Homopolymer)
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Hostacom FPP 30GFC K1079 LW BLK |
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LyondellBasell Industries
|
Laser Weldable |
Polypropylene Homopolymer (PP Homopolymer)
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Hostacom PPH GF 30 LW LE H3 BLACK |
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Plasthill Oy
|
Laser Weldable |
Polystyrene, Specialty (PS (Specialty))
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Kareline® PSMS6040 |
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Diamond Plastics GmbH
|
Laser Weldable |
Thermoplastic, Unspecified (TP, Unspecified)
|
Diamond Plastics Laser HDPE HX 17 |
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We supply laser welding materials for various plastic manufacturers. Inquiries are welcome.+18816996168
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| Laser Welding of PBT Plastics: A Comprehensive Overview | |||
| 1. Introduction to PBT Plastic | |||
| Polybutylene Terephthalate (PBT) is a semi-crystalline thermoplastic polyester known for its excellent mechanical strength, heat resistance, electrical insulation, and chemical stability. Due to its good processability and dimensional stability, PBT is widely used in electronics, automotive, and industrial applications. | |||
| 2. Suitability of PBT for Laser Welding | |||
| PBT can be effectively welded using Through-Transmission Infrared (TTIR) Laser Welding, which is ideal for applications requiring high precision, vibration-free joining, and minimal residual stress. | |||
| Key Welding Parameters: | |||
| Laser Wavelength: Typically 808nm, 940nm, or 980nm near-infrared (NIR) lasers (PBT has moderate transmission in this range). | |||
| Absorber: Requires additives (e.g., carbon black, IR-absorbing dyes) at the joint interface to enhance laser absorption. | |||
| Clamping Pressure: Moderate pressure (0.2–1 MPa) ensures proper fusion. | |||
| Welding Time: Short pulses (millisecond range) or continuous welding, depending on material thickness. | |||
| 3. Applications of Laser-Welded PBT | |||
| Laser-welded PBT is widely used in precision electronics, automotive components, and medical devices: | |||
| (1) Electronics & Electrical | |||
| Connectors (USB, HDMI ports) | |||
| Relay housings | |||
| Sensor enclosures (requiring dust/waterproofing) | |||
| (2) Automotive Industry | |||
| Lighting components (fog lamps, taillight housings) | |||
| ECU (Electronic Control Unit) casings | |||
| Fuel system parts (chemical resistance required) | |||
| (3) Medical Devices | |||
| Medical equipment housings (sterile sealing needed) | |||
| Lab consumables (resistant to solvents/autoclaving) | |||
| 4. Performance Characteristics of Laser-Welded PBT | |||
|
Property
|
Description | ||
| Weld Strength | 80–95% of base material strength | ||
| Sealing Performance | Excellent hermeticity (suitable for waterproofing) | ||
| Heat-Affected Zone (HAZ) | Minimal, reducing material distortion | ||
| Welding Speed | Fast (0.1–10 sec/weld, depending on laser power) | ||
| Surface Finish | Smooth, no flash or particulate residue | ||
| Thickness Range | Typically 0.5–5 mm (excessive thickness reduces transmission) | ||
| 5. Classification of PBT for Laser Welding | |||
| PBT can be categorized by fillers/modifiers, affecting weldability: | |||
|
PBT Type
|
Properties | Laser Weldability | |
| Unfilled PBT | High toughness, low warpage | Good, requires absorber | |
| Glass-Fiber Reinforced PBT (e.g., PBT+30% GF) | High strength/rigidity | Challenging (parameter adjustment needed) | |
| Flame-Retardant PBT (UL94 V-0) | High fire resistance | Avoid thermal degradation; control laser energy | |
| Impact-Modified PBT | Improved toughness | Slightly reduced weld strength | |
| 6. Laser Welding vs. Alternative Joining Methods | |||
|
Method
|
Advantages | Disadvantages | |
| Laser Welding | High precision, no vibration, low stress | High equipment cost, requires transparent material | |
| Ultrasonic Welding | Fast, suitable for mass production | May cause flash, less precise | |
| Hot Plate Welding | Strong joints for thick parts | Slow, energy-intensive | |
| Vibration Welding | Good for large parts | Complex setup, not ideal for thin walls | |
| 7. Common Challenges & Solutions | |||
| Issue 1: Weak Weld Strength | |||
| Cause: Insufficient laser energy or uneven absorber distribution. | |||
| Solution: Optimize power/scan speed; ensure uniform absorber coating. | |||
| Issue 2: Material Degradation/Charring | |||
| Cause: Excessive energy or prolonged exposure. | |||
| Solution: Reduce power; use pulsed laser mode. | |||
| Issue 3: Inconsistent Weld Seam | |||
| Cause: Misalignment or uneven pressure. | |||
| Solution: Use precision fixtures; optimize weld path. | |||
| 8. Future Trends | |||
| Hybrid Laser Welding (e.g., laser + vibration) for enhanced quality. | |||
| Advanced Absorbers (e.g., nanomaterials) for higher efficiency. | |||
| Automated Robotic Laser Welding in automotive/electronics mass production. | |||
| Laser welding of PBT is ideal for high-precision, hermetic sealing applications in electronics, automotive, and medical industries. By optimizing laser parameters, material composition, and process control, consistent and high-quality welds can be achieved. Future advancements will further expand its industrial adoption. | |||
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