Research On Modular Manufacturing Time Within Mass Customization Environment

As the development of science and technology, modern production environmentundergone fundamental changes: From mass production into a single small batchproduction; From the production face the inventory to production face the order; Fromquality, cost as the center to the customers as the center; By the influence ofcustomization level and customization degree, the production task randomness andincreasing uncertainty, these changes make modern production environment fromsimple, stability has become more complex and dynamic, therefore Mass Customizationproduction model comes into being. MC production model, in a certain extent, improvemanufacturing enterprise to market coping, satisfy the customer fast and variety ofproducts demand. But also take great challenges to the time study of the enterprisecustom products. Complex redundancy, low efficiency of the traditional working hoursformulation method has not accurately reflect the MC production mode product hours,much more difficulties have taken to the arrangement of the production plan, productioncost accounting and on time delivery etc. Therefore, MC enterprise must rethink theestablishment method of product manufacturing time, in order to meet the MCproduction environment for efficiency and accuracy, and improve response capacity ofenterprise manufacturing system to the market.In this paper, according to the characteristics of mass production and the analysisof requirements of manufacturing time, and combined with the traditional time quotaformulation method, put forward the modular manufacturing time research methods.The outstanding characteristic of this method is it inherits the modular thought andobject-oriented ideas of design and manufacture for product family, makingcorresponding all kinds of time module of features modules and their decompositionobject as the research object, using the thought of data reuse, work out all sorts ofcustomized products and its parts manufacturing time quota of the enterprise with highefficiency and low cost. The paper put forward the influence of customization level andcustomization degree on product manufacturing time, and set up an individual timesub-module with this influence, called customized module. As part of the time module,customized module and operation module, also is the basic product operation time,building time module together, and then calculate the manufacturing time of theproduct. First of all, set up the basic structure model of the method, and define the object inthe model, especially physical module, logical module, operation module andcustomized module. Secondly, analyze the division of enterprise product family and productmodule, and establish time module of the product. Then, analyze operation module andcustomized module; define the category of the two modules. Analyzing the two modulesfor further, to determine the carrier of the amount of time operation module andcustomized module, and through various methods, constructing the mathematical modelof operation module and customized module in physical module and the logical module.Compute the numerical value of operation module and customized module, and thusbuild manufacturing time mathematical model of the customized product, and thencompute manufacturing time of the product. Finally, verify the feasibility andeffectiveness of the mathematical model through the enterprise actual cases.