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Performance Study of an Innovative Collaborative Robot Gripper Design on Different Fabric Pick and Place Scenarios

University of Windsor-Morteza Alebooyeh, Bowen Wang, Ruth Jill Urbanic
  • Technical Paper
  • 2020-01-1304
To be published on 2020-04-14 by SAE International in United States
Light-weighting fiber composite materials introduced to reduce vehicle mass and known as innovative materials research activities since they provide high specific stiffness and strength compared to contemporary engineering materials. Nonetheless, there are issues related automation strategies and handling methods. Material handling of flexible textile/fiber components is a process bottleneck and it is currently being performed by setting up multi-stage manual operations for hand layups. Consequently, the long-term research objective is to develop semi-automated pick and place processes for flexible materials utilizing collaborative robots within the process. The immediate research is to experimentally validate innovatively designed grippers for efficient material pick and place tasks. Pick and place experiments on a 0/90 plain woven carbon fiber fabric with an innovative gripper design is tested using a YuMi 14000 ABB collaborative robot to validate the new-designed gripper enhanced performance on the slippage and material wrinkling based on the previous research [20] for two gripping forces, and two travel speeds. Also, different double arm pick and place scenarios are sought to achieve an acceptable approach through which fabric wrinkling…
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Phenolic SMC for Automotive Fire Resistance

Hexion Inc.-Ian Swentek, Cedric A. Ball, Stephen Greydanus, Kameswara Rao Nara
  • Technical Paper
  • 2020-01-0771
To be published on 2020-04-14 by SAE International in United States
Phenolic resins that meet REACH compliance and contain lower free-formaldehyde are safer to handle, compound, and mold. These resin systems do not contain any styrene or require any fillers to achieve their rated fire resistance. A commercial phenolic sheet-molding compound (SMC) is presented that achieves a 2-minute cycle time and addresses the unique requirements in an electrified vehicle architecture. This new SMC material includes all the industrially relevant considerations including material processing, shelf life, and surface finish. Other topics such as material hybridization and comparison to incumbent materials also discussed. The resin system uses a water-based phenolic resole which is acid-cured. This chemistry presents several unique challenges and opportunities for the industry such as managing formulation pH and appropriate methods for quality control. A demonstrator battery cover highlights the superior fire performance, impact resistance, and light weighting that is achieved with this resin technology. The phenolic SMC formulation is compatible with already established engineering fibers and textiles resulting in low-shrink, creep-resistant composites. The mechanical performance demonstrates strength and impact energy absorption greater than cast aluminum,…

Q&A: Electrically Conductive Coated Yarn for Wearable, Washable Fabrics

  • Magazine Article
  • TBMG-35982
Published 2020-02-01 by Tech Briefs Media Group in United States

Professor Genevieve Dion, Director of Drexel University's (Philadelphia, PA) Center for Functional Fabrics, is collaborating with other experts to coat yarn with the highly conductive, two-dimensional material MXene. They demonstrated that the yarn could be used with standard textile manufacturing techniques to create wearable conductive fabric.

Threads Detect Gases When Woven into Clothing

  • Magazine Article
  • TBMG-35989
Published 2020-02-01 by Tech Briefs Media Group in United States

A fabrication method was developed to create dyed threads that change color when they detect a variety of gases. The threads can be read visually or even more precisely by use of a smartphone camera, to detect changes of color due to analytes as low as 50 parts per million. Woven into clothing, the gas-detecting threads could provide a reusable, washable, and affordable safety asset in medical, workplace, military, and rescue environments.

Washable Sensor Can Be Woven Into Materials

  • Magazine Article
  • TBMG-35726
Published 2019-12-01 by Tech Briefs Media Group in United States

A low-cost sensor was developed that can be interlaced into textiles and composite materials, paving the way for smart clothing that can monitor human movement. The embedded microscopic sensor is able to recognize local motion through the stretching of woven yarns treated with graphene nanoplatelets that can read the body's activity.

Bioresorbable Patch Offers New Alternative for Arterial Healing

  • Magazine Article
  • TBMG-35632
Published 2019-12-01 by Tech Briefs Media Group in United States

When a patient experiences 70 percent or greater stenosis in the carotid artery — a condition that can cause lack of cerebral blood flow, stroke, and in some cases, death — surgeons perform a procedure known as carotid endarterectomy (CEA) to remove the plaque causing the artery stenosis.1,2 The procedure consists of a longitudinal incision made from the common to the internal carotid artery, allowing for removal of the plaque that deposits in the bifurcation.

Flexible Sensor Mimics Human Finger Skin

  • Magazine Article
  • TBMG-35503
Published 2019-11-01 by Tech Briefs Media Group in United States

Artificial skin tactile sensors can feel the similar pressure and vibration felt by human skin. The new sensors can detect more sensitive tactile than the existing ones. The skin-based sensor detects both pressure and vibration at the same time and effectively measures textile. The new sensors also convert the surface roughness of a matter into electrical signals to identify physical stimulations with more sensitivity and accuracy.

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Natural and Artificial Weathering of Automotive Leather, Leatherette and Textile

Mahindra & Mahindra, Ltd.-Elavarasan Palaniappan
Published 2019-10-11 by SAE International in United States
This paper presents the natural and artificial weathering behavior of different soft skin materials such as leather, leatherette and textiles used for automotive seat cover applications. The objective of this study was to understand the physical and aesthetical changes occurring at these flexible materials under sun UV light and heat exposure. The natural weathering study under glass exposure was carried out as per ASTM G 24 at natural weathering site location and artificial weathering as per SAE J2412 at lab. The material was observed for surface changes such as color, texture, crack and physical changes like flexibility and hardness during the exposure. The sample exposed at natural weathering data for every 15 days were recorded, and artificial weathering for every 100 hours were recorded. Light and dark color materials were tested to understand the effect of color and UV light resistance as well as various textures were studied to understand the effect of various texture and texture retention under UV.The study was also carried out at two different period in a year and the data…
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Conductive Textiles Connect Multiple Wearables

  • Magazine Article
  • TBMG-35093
Published 2019-09-01 by Tech Briefs Media Group in United States

Researchers at the National University of Singapore (NUS) have invented a completely new way for wearable devices to interconnect. They incorporated conductive textiles into clothing to dynamically connect several wearable devices at once. This “wireless body sensor network” allows devices to transmit data with 1,000 times stronger signal than conventional technologies, meaning the battery life of all devices is dramatically improved. Wireless networks of these wearable devices on a body have future applications in health monitoring, medical interventions, and human-machine interfaces.

Flexible High-Energy Textile Lithium Battery Designed for Wearables

  • Magazine Article
  • TBMG-34973
Published 2019-08-01 by Tech Briefs Media Group in United States

Researchers at Hong Kong Polytechnic University (PolyU) have developed a highly flexible, high-energy textile lithium battery that offers more stable, durable, and safe energy supply for wearable electronics with a myriad of applications, including healthcare monitoring and intelligent textiles.