The ICASEM 4th International Applied Sciences, Engineering and Mathematics Congress, Tekirdağ, Türkiye, 20 - 23 Ekim 2022, ss.112
Medium-density fiberboard (MDF) or high-density fiberboard (HDF) based and painted parts in different colors and patterns are used to close the vehicle body in the cargo and passenger transportation areas of commercial and light commercial vehicles. After applying paint processes in various colors on these MDF or HDF parts, which are used as interior trim parts, the insulation material is coated underneath. Scratching and peeling problems are seen due to the various blows it receives due to the painting process. In addition, due to the cut applied to the outer geometry of the MDF or HDF panel, swelling and blistering problems occur on the panel as a result of water or moisture intake from these areas. In this study, poly(vinyl chloride) (PVC) which was supplied in coil form, and MDF or HDF panels were combined with the help of a laminating machine. During the production of the composite, polyacrylic (PA) or polyurethane (PU) based glue was used. The semi-finished product, which has been combined with the laminating machine, is cut in accordance with the geometry of the finished product.The laser cutting process was done for the cutting process. The semi-finished product, which was cut by laser, was turned into a finished product by mounting the relevant sound and heat insulation materials. With this study, paint-related problems that affect the life of the product and swelling-blistering problems caused by cutting have been eliminated. Product tests carried out; paint adhesion test device (cross-cut), chemical resistance, scratch test, flammability test, and cleanability tests. Prototypes have passed all tests successfully. The developed product is a product that has not been produced before in the automotive industry globally. The use of PVC coating instead of paint on the product provides endless color and pattern possibilities, while at the same time it has emerged as a much more longlasting product due to its high abrasion resistance compared to paint