Analysis of Bonding Performance of Die-cast Aluminum Engine Block and Aluminum Sprayed Liner

Author of the article:FU Xilong 1 , QIAN Gaojie 1 , JIN Rong 1 , LI Kai 1 , SHEN Siyu 1 , TONG Shenliang 2 , GE Naijin 2

Author's Workplace：1. HASCO KSPG Nonferrous Components (Shanghai) Co., Ltd., Shanghai 201815, China; 2. Anqing TPGOETZE Liner Co., Ltd., Anqing 246000, China

Key Words： spray aluminum cylinder liner; die casting; numerical simulation; cylinder liner combination performance

Abstract：The bonding performance of aluminum alloy cylinder block and cast iron cylinder liner has a direct impact on
the thermal conductivity, so it is necessary to control the quality of the gap between aluminum and cylinder liner and the
bonding strength. The simulation software Flow-3D was used to analyze different cylinder die-casting process schemes, and
the optimal process scheme was selected for production. The casting with stable process was extracted, and the bonding
and tensile strength of the aluminum alloy body and the cylinder liner (aluminum spray) aluminum spray layer were
analyzed. The results show that the bonding gap between the cylinder liner (sprayed aluminum) and the aluminum cylinder
block is better than that of the mushroom head cylinder liner, and the bonding strength meets the performance
requirements.