Research And Development Of Casting Technology And Equipment For Production Of High Strength And High Pressure Aluminum Piston

With the implementation of national VI emission standards,higher requirements are put forward for engine design and development.As the key part of the engine,the working condition of piston is more and more severe.In order to meet this high demand,aluminum piston is developing towards the direction of high strength and high burst pressure.The traditional casting technology and equipment of aluminum piston is difficult to meet the casting requirements of high-strength and high-pressure piston.Therefore,this project combines the latest technology to develop a new casting technology and BCM-132P aluminum piston casting machine,and verifies the technology and equipment.First of all,the significance of the research on the new casting technology and equipment of aluminum piston is described.The development process,research status and the development of industrial robots at home and abroad are introduced,and the research direction is pointed out.Because the properties of products produced by traditional casting methods are difficult to meet the requirements,a new casting technology:Combustion Bowl Metallographic phase Refining is put forward by analyzing the cooling principle of casting process.The control implementation of CMR technology is introduced,and the structural characteristics of CMR die are described in detail.The casting process of high-strength and high-pressure aluminum piston was simulated and analyzed by using the casting simulation software MAGMA:the conditions of the casting process were set in the software,and the simulation results were obtained through the automatic calculation and analysis of the software.According to several criteria of the software and the analysis results,a reasonable conclusion of the casting process is obtained.The production of high strength and high pressure piston by a new type of automatic casting machine was studied.This paper introduces the structure and function of the mechanical part and the transmission part of the casting machine,mainly analyzes and calculates the bearing capacity of the bed,and carries out the ANSYS finite element analysis of the key parts with large stress;calculates the hydraulic cylinder and the hydraulic system system to ensure that the hydraulic system can meet the requirements.This paper introduces the six axis industrial robot for pouring.For the selection of the robot,abb IRB 6700 six axis robot is selected,and a seventh axis pouring device is designed at the end of the six axis.The D-H parameter model based on the robot’s parameters is described.This paper introduces the robot Studio software and programming language,and simulates the robot’s action flow offline in the robot Studio software.Finally,through the actual production,the piston products produced by the new casting technology and bcm-132p casting machine are verified.Through the inspection of casting defects,it shows that the piston of CMR technology will not produce obvious casting defects.The CMR piston and the standard piston are compared.The conclusion that CMR technology can improve the performance of piston is obtained by comparing the indexes of metallography,hardness,tensile strength at room temperature and tensile strength at high temperature.