The Design Of The Round Billet Pieces Production Line With Flexsim And Simulation Optimization Of Quenching Process

In the circular saw blade industry,its production mode is still way of mass production,with the increase of personalization demand,in the new market environment has gradually lose advantage,already can't meet the demand of the development of the enterprise in the future,especially in the small round billet diameter below the 600 mm,the problem is particularly prominent,mainly in the production efficiency is low,production increase difficulties;Production cycle is too long.Therefore,in this paper,the existing small diameter circular saw blade manufacturing process for planning and design,puts forward the round billet pieces of semi-finished products production line,and the production line and quenching process is optimized.This paper on the small diameter circular saw blade process and actual production needs,on the basis of planning the small diameter of the round billet process,using the theory of modular process is divided into its kaiping material,heat treatment,grinding and warehousing four big modules,each module of the technology and equipment for the planning.Then USES the Flexsim software modeling and simulation optimization of production line,choose production line of the staging area stack state and working state of each process were analyzed,and find out the quenching process and the fragmentation process is the bottleneck process.Use of industrial engineering ECRSI principle,design optimization scheme.Optimization results show that the optimized completely eliminate congestion rate of quenching process and further fragmentation process of blocking rate down to 4.5%,compared with before optimization,was reduced by 88.4%.2 registers capacity fell to an average of 41.86,compared with before optimization was reduced by 20.44%.6 the average capacity of 15.79 registers,reduced by 63.94%than before optimization.Combined with finite element method and response surface method optimization of circular saw blade quenching process parameters.Aimed at the problem of large circular saw blade quenching deformation,the distribution characteristics of quenching residual stress,based on the numerical analysis.Method was optimized by using response surface to quenching austenite formation temperature and holding time as optimization variables,quenching residual stress as optimization objective function,the circular saw blade quenching parameters optimization.Optimization results show that:in the quenching process,the circular saw blade quenching stress is tensile stress,the circular saw blade temperature change rate of quenching residual stress affect the most obvious;By controlling the reasonable slowdown saw blade temperature change rate,can effectively reduce the degree of deformation.Also found that:the circular saw blade tooth section temperature change rate was the fastest,the maximum residual stress changes in,when cooling in the region of the tooth of applied load can reduce tooth deformation;After quenching,residual stress to tensile stress state appeared on the edge of the center hole area,should avoid the area with higher loading in the subsequent processing.The process parameters were optimized quenching is:austenitic formation temperature of 836.62?,heat preservation time is 5.02 min,lowest 198.829 MPa residual stress.Through on round billet production line design and the optimization of its key technology,circular saw blade production process and model more reasonable,helps to improve circular saw blade enterprise's ability to respond to market changes,improve production efficiency and quality,promote the development of stone industry.