24200352-Just-in-Time

Just-In-Time

Use & Implementation in the Manufacturing World

Definition

• Uses a systems approach to develop and operate a manufacturing system

• Organizes the production process so that parts are available when they are needed

• A method for optimizing processes that involves continual reduction of waste

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Central Themes SurroundingJust-In-Time

• Simplicity•• Quality•• Elimination of Waste•

Prerequisites for JITImplementation

• A Reason for Changing• Executive Commitment• Strategic Manufacturing Plan• Commitment to Action•

Just-In-Time Techniques

• Inventory Reduction as a Tool for Improvement• Supplier Relationships• Inventory “Pull”• Uniform Plant Loading••

Just-In-Time Techniques(cont’d)

• Reduced Setup Times• Shop-Floor Layout and Production Cells• Total Quality Assurance• Preventive Maintenance•

A Competitive Edge

• Integrating and Optimizing• Improve Continuously• Understanding the Customer

Goals of Just-In-Time Systems

• Design for Optimum Quality and Cost• Minimize resources needed for Design and

Manufacturing• Be Responsive to the Customers Needs•

Goals of Just-In-TimeSystems(cont’d)

• Develop Trust and Open Relationships with Suppliers and Customers

•• Develop a Commitment to Improve the Total

Manufacturing System

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Advantages of JIT

• Materials Cost Savings• Manufacturing Cost Savings• Sales Cost Savings•

Elements in Materials Cost Saving

• Reduction of Suppliers• Long-term Contracts• Reduce Order Scheduling• Simplify Receiving Systems• Eliminate unpacking• Eliminate Inspection• Eliminate inventory Stocking• Eliminate Excess Material

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How Just-In-Time Systems Work

• Requirements for JIT Manufacturing•• Firm-wide Commitment•• Knowledgeable Management•

Requirements for JIT• Respond to Customer Requirements• Integrate all Processes in the Manufacturing

System• Employee Participation in Meeting

Commitments• Company wide Commitment to education• Eliminate redundancy• Reduce all Inventory• Establish Continuous Improvement Goals•

Requirements for JIT(cont’d)

• Use a pull Production System• Design products for Manufacturing• Develop Controllable Production Processes• Have a Defect Prevention Program• Reduce Setup Times• Build Products to Specification••

A Real World Example

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The Toyota Production System•

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Just-In-Time Manufacturing Systems•