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Selecting Nylon-Based Plastics for Laser Welding Technology
Technical Paper
2000-01-1168
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
Selecting thermoplastics for welded, under-the-hood, automotive parts strongly depends on the plastic material properties, part design, as well as the molding and joining / welding technology conditions. Laser transmission welding (LTW) requires preferential deposition of energy and subsequent melting and diffusion of the material in the interfacial / weld-plane zone. This is optimized when the laser beam is transmitted through the thermoplastic transparent part and absorbed by the adjoining part to be welded. Energy deposition can be controlled to some extent by adjusting laser power, choice of beam focussing optics, sweep rate, etc.
The thermoplastic material properties and composition (reinforcements, fillers, additives, pigments, etc.) may have the greater influence and need to be characterized for optimum material selection for the transmission welding application. Commercial nylon based thermoplastics cover a large array of compositions, which may affect the laser transmission welding (LTW) process.
To provide a guide to nylon based thermoplastics selection for these applications we have evaluated the influence of specific material composition factors and properties, such as fiber-glass, mineral filler, impact modifier content, and color / pigment version on the Near InfraRed (NIR) transmission characteristics, including the laser wavelength (1.06 mm). We have related these findings to the mechanical performance of nylon welded joints in terms of the influence of transmission laser welding technology parameters (laser power, welding speed, laser beam spot diameter, clamp pressure, etc.) and thermoplastic composition (reinforcements, fillers, additives, pigments, etc.).
Comprehensive results of this evaluation will assist plastic parts designers and technologists in selecting nylon based thermoplastics and developing new products using laser transmission welding (LTW) technology.
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Authors
Citation
Kagan, V., Bray, R., Kuhn, W., and Pinho, G., "Selecting Nylon-Based Plastics for Laser Welding Technology," SAE Technical Paper 2000-01-1168, 2000, https://doi.org/10.4271/2000-01-1168.Also In
References
- Grewell, D. A. Amplitude and Force Profiling: Studies in Ultrasonic Welding of Thermoplastics SPE Conference Proceedings 1 1051 1058 Antec’96
- Stokes, V. K. Hobbs, S. Y., Strength and Bonding Mechanism in Vibration - Polycarbonate to Poly-etherimide Joints Polymer Engineering and Science 29 23 December 1989
- Potente, H., Uebbing, M., Lewandowski, E., The Vibration Welding of Polyamide 66 Journal of Composite Materials 6 2 17 January 1993
- Kagan, V. Vibration Welding of Glass-Fiber-Reinforced Polyamide Plastics Kunststoffe plastic europe 87 1804 1807 December 1997
- Froment, Ian. D. Vibration Welding Nylon 6 and Nylon 66 - A Comparative Study SPE Conference Proceedings 1 1285 1289 Antec’95
- Kagan, Val A. Advantages of Welded Nylon for Powertrain Applications: Linear Vibration, Orbital Vibration and Hot Plate Welding Technologies, Stuttgart, Germany, Global Powertrain Congress 1999
- Kagan, Val A. Joining of Nylon Based Plastics Components-Vibration and Hot Plate Welding Technologies, SPE Conference Proceedings, 1 1349 1359 ANTEC’99
- Grewell, David A., An Application Comparison of Orbital and Linear Vibration Welding of Thermoplastics SPE Conference Proceedings 1 1365 1369 Antec’99
- Schaible, C Cakmak, M., Dynamics and Structure Development in Spin Welding of Polyvinylidene Fluoride Cylindrical Rods International Polymer Processing, 3 270 282 1995
- Brubel, A., Potente, H., Welding Behavior of Filled and Reinforced Thermoplastics with Hot-Plate Welding SPE Conference Proceedings 1 1062 1066 Antec’98
- Taylor, N. S., Klaiber F. Wermelinger, J. Assessment of PP Joints Made by a New Infrared Joining System SPE Conference Proceedings 2 2647 2656 Antec’93
- Chen Yang S. Benatar, Avraham, Infrared Welding of Polypropylene SPE Conveyance Proceedings 1 1235 1238 ANTEC’95
- Grimm, R. A., Through-Transmission Infrared Welding of Polymers SPE Conference Proceedings 1 1238 1244 Antec’96
- Yeh, Hong Jun Grimm, Robert A., Infrared Welding of Thermoplastics: Characterization of Transmission Behavior of Eleven Thermoplastics SPE Conference Proceedings 1 1030 1033 Antec’98
- David A. Grewell, Applications with Infrared Welding of Thermoplastics , SPE Conference Proceedings 1 1411 1415 Antec’99
- Ou, B. S., Benatar, A. Albright, C. W., Laser Welding of Polyethylene and Polypropylene Plates 2 1764 1767 Antec’92
- Jones, Ian, Taylor, Nicki, Laser Excel in High Speed Plastic Welding TWI, Bulletin 6 Reprint 471/6/94 3 November/December 1994
- Jones, Ian, Transmission Laser Welding of Plastics TWI, Bulletin 75 4 July/August 1998
- Potente, H., Korte, J., Becker, F., Laser Transmission Welding of Thermoplastics: Analysis of the Heating Phase , SPE Conference Proceedings 1 11022 1025 Antec’98
- Potente, H., Korte, J., Laser Butt Welding of Semi-Crystalline Thermoplastics SPE Conference Proceedings 1 1255 1259 Antec’96
- Lasers Take AIM at Welding Plastics Injection Molding 103 106 April 1999
- Hedrun Puetz, Dirk Haensch, Laser Welding Offers Array of Assembly Advantages - Modern Plastics 121 123 September 1997
- Klein, H., Haberstroh, E., Laser Beam Welding of Plastic Micro Parts, SPE Conference Proceedings 1 1406 1410 Antec’99
- Carlson, E., Nelson, K., Nylon Under-the-Hood. A History of Innovation SAE, Automotive Engineering 84 89 December 1996
- Treusch, H. G., Putz, H., Hansch, D., Laser Welding of Polymer Parts 5-th Plastic Manifold Forum, 12 1998
- Natrop, J. Korte, J. Machinery Concepts and Welding Applications for Laser Welding 5-th Plastic Manifold Forum, 16 1998
- Destefani, James D., Manifolds Improvements Molding Systems 34 38 August 1999
- Potente, H., Becker, F., Laser Welding of Thermoplastic Materials 5-th Plastic Manifold Forum, 10 1998
- Grimm, Robert. A. Yeh, Hong Jun Infrared Welding of Thermoplastics: Colored Pigments and Carbon Black Levels on Transmission on Infrared Radiation SPE Conference Proceedings 1 1026 1029 Antec’98
- Kagan, Val, Good Vibration Join Thermoplastics Fast Machine Design, A Penton Publication 67 74 August 1999
- Kagan, V., Performance of Vibration Welded Thermoplastic Joints US Patent # 5,874,146, February 1999
- Potente, H., Becker, F., Weld Strength Behavior of Laser Butt Welds SPE Conference Proceedings 1 1402 1405 Antec’99
- Make it with LASERS: Laser Processing of Polymers, Polymer Composites & Wood Seminar on the technology transfer program,. Technical Presentations The Welding Institute (TWI) Cambridge, UK 1999 Jones, I. A., Olden, E. “A Thermal Model for Transmission Laser Welding of Plastics”, TWI members report, 1999
- Khanna, Y., Memory Effects in Polymers Part I: Orientational Memory in the Molten State: Its Relationship to Polymer Structure and Influence of Re-crystallization Rate and Morphology., Journal of Applied Polymer Science, Vol. 35, pp. 2259-2268,1988. Part III: Processing History vs. Crystallization Rate of Nylon 6 - Comments on Origin of Memory Effects., Polymer Engineering and Science, Vol. 28, pp.1612-1615, 1988. IV: Processing History vs. Crystallization Rate - Effect of Polymer Structure., Journal of Polymer Physics 27 369 379 1989
- Aharoni, Shaul, Increased Glass Transition Temperature in Motionally Constrained Semi-Crystalline Polymers Polymers for Advanced Technologies 9 169 201 1998