Production and Operation Managements Just-in-time Dr.Na GENG Prof.Zhibin JIANG Department of Industrial Engineering Management Shanghai Jiao Tong University
Production and Operation Managements Dr. Na GENG Prof. Zhibin JIANG Department of Industrial Engineering & Management Shanghai Jiao Tong University Just-in-time
国 Just-in-time Contents .Introduction ·Just-in-time(JT) 。Kanban introduction
Just-in-time Contents • Introduction • Just-in-time (JIT) • Kanban Introduction
Preface: Toyota Automobile In 50's last century,Japanese Toyota Automobile was not known at all since its annual output was even lower than daily output of Ford Automobile. 20 years later,Japanese automobile industry rapidly raised such that it subverted American leading position in worldwide manufacturing industries. American learnt from their poor lessons,and a group of scholars of MIT conducted a insight investigation in Toyota and wrote a well-known book "The Machine that Changed the World"and have proposed a profound manufacturing mode,that is Lean Production(LP) The core philosophy of LP is Just in Time (JIT) 上泽充鱼大睾
Preface： Toyota Automobile In 50’s last century, Japanese Toyota Automobile was not known at all since its annual output was even lower than daily output of Ford Automobile. 20 years later, Japanese automobile industry rapidly raised such that it subverted American leading position in worldwide manufacturing industries. American learnt from their poor lessons, and a group of scholars of MIT conducted a insight investigation in Toyota and wrote a well-known book “The Machine that Changed the World” and have proposed a profound manufacturing mode, that is Lean Production (LP). The core philosophy of LP is Just in Time (JIT)
图 HATIONAL BESTSELLER THE MACHINE THAT CHANGED MSY每 LERN PROOUCTION 中5纯神 h8物At3 样#e中t MTT 郎2家随瓜T区田装阻修 Dr James P.Womack Visited IE&M Dept.of SJTU 上浒充通大粤
Dr James P. Womack Visited IE&M Dept. of SJTU
Introduction JIT-produce exactly what we need when we need it. JIT is a philosophy whereby we Lean Production Through Waste Elimination continuously attempt to drive all waste out of our production system. Quality JIT People at the JIT Goal-Continuous improvement Source Zero inventory Zero defects Operational Stability Zero setups Zero breakdowns Zero handling Zero lead time
Introduction • JIT - produce exactly what we need when we need it. • JIT is a philosophy whereby we continuously attempt to drive all waste out of our production system. • JIT Goal – Continuous improvement • Zero inventory • Zero defects • Zero setups • Zero breakdowns • Zero handling • Zero lead time Lean Production Through Waste Elimination Operational Stability JIT Quality at the Source People
Introduction Traditional Mode (Push) Cost Profit Selling Seller Driven Price (SELLER) Selling LP Mode Price (Pull) Customer Pull PROFIT (MARKET) Cost
Introduction Traditional Mode (Push) Seller Driven Selling Price Cost + Profit = (SELLER) LP Mode (Pull) Customer Pull Selling Price - Cost PROFIT = (MARKET)
⑧ Introduction Process Scrap downtime Setup Quality time problems Late deliveries 上泽充道大睾
Process downtime Scrap Setup time Late deliveries Quality problems Introduction
Introduction Minimizing Waste:Inventory Hides Problems Process Scrap downtime Setup Quality time problems Late deliveries 上浒充通大粤
Process downtime Scrap Setup time Late deliveries Quality problems Minimizing Waste: Inventory Hides Problems Introduction
Types of wastes Call it 20? Waiting time Ten …22to pleasel be on the safe sidel Overproduction Transportation Product defects Inventory waste Processing Motion/movement 上泽充鱼大粤
Types of wastes Overproduction Transportation Waiting time Inventory waste Processing Motion/movement Product defects
Types of wastes 1.Overproduction Produce not to the marketing. ①High WIP level. 2 Increasing inventory level ③Backlog of funds 4 Difficult to realize First-In-First-Out. 5 The increasing equipment cost,for example,turnover boxes 6 The undiscovered quality problem
1. Overproduction Produce not to the marketing. ① High WIP level. ② Increasing inventory level ③ Backlog of funds ④ Difficult to realize First-In-First-Out. ⑤ The increasing equipment cost, for example, turnover boxes ⑥ The undiscovered quality problem …… Types of wastes