The Development Of The System Of Cost Estimation And Price Quoting For Injection Mould Manufacture

Moulds-quotation is comprehensive reflection of technology, economy, efficiency and management of moulds manufacturers, it is also an important economic terms that determining whether could make a deal among manufacturers of moulds and customers. With the fast development of the manufacturing industry of moulds, quotation relying on personal experience obviously can not meet the need of market competition and variety already. At the same time, development of CE and CSCW require enterprises to offer the estimation cost and price of the mould at the different stage of design and manufacture of moulds in time too. In order to overcome these practical situations and to meet the keen market competition, a user friendly, more accurate mould cost calculation and quotation system should be introduced.Based on Analogous Estimation and CAPP, A computerised cost estimation and price guoting system for injection mould manufacture is established , coded in Visual C# and SQL Sever Database system.At first, the paper discusses the characteristics of traditional mould quotation methods and then respectively constructs code system of plastic part and injecton mould according to comparability theory through cost analysis of injection moulds. With this system, the plastic part characters and the mould characters which are close to the mould cost are expressed;By using F-AHP, the text constructs a coefficient model of plastic part and mould-characters, quantifies comparability successfully;Searching cost and quotation of comparative moulds with comparative searching-method based on character-coding;Constructing structure and designing craft of the present mould according to the structure and the craft of the comparative moulds being searched out;Computing cost of the present mould according to constructed structure and craft.