Presentation is loading. Please wait.

Presentation is loading. Please wait.

Chapter 2 - The Value Stream

Similar presentations

Presentation on theme: "Chapter 2 - The Value Stream"— Presentation transcript:

1 Chapter 2 - The Value Stream
MSE507 Lean Manufacturing - Prof. David Shternberg Lean Manufacturing Chapter 2 The Value Stream "Whenever there is a product for a customer, there is a value stream. The Challenge lies in seeing it” PHILIP (PHIL) M. CONDIT Chairman and Chief Executive office The Boeing Company California State University, Northridge

2 "There is only one boss: the customer
"There is only one boss: the customer. And he can fire everybody in the company, from the chairman on down, simply by spending his money somewhere else." Samuel M. Walton Wal-Mart Stores, Inc. Chairman & Chief Executive Officer

3 Why Map A Value Stream? Lean Manufacturing is:
the relentless elimination of waste Waste is using resource… …without adding value Waste is all around us, but it can be very hard to see Value Stream Maps (VSM) help us see waste

4 Value Streams A Value Stream is the entire set of activities running from raw material to finished product for a specific product or product family In a typical enterprise, value streams can intersect with other value streams, branch apart or Y together

5 Value Stream Maps Value Stream Maps are powerful visual tools to help see waste and understand the flow of material and information Especially powerful for illustrating the wastes of Overproduction, Idle Material & Transportation Value Stream Maps show all actions required to deliver a product… Value Added…as well as Non-Value Added

6 Other Benefits Of VSM Provides a big picture perspective that helps focus on improving the whole process, not just optimizing bits and pieces Shows the linkage between the information flow and material flow Helps to see across the functional boundaries over which a product’s value stream flows

7 Other Uses For VSM To help understand how your business actually works (you don’t understand the current process if you can’t draw it) A tool for establishing a vision and implementation plan for a new business or product line A visual tool and common language for talking to others about your manufacturing process

8 Mapping Process Product Family Define the Value Stream
Current State Drawing Understand how the value currently flows Future State Drawing Design a LEAN flow Plan how to get there and execute the plan Work Plan & Implementation

A Reminder The point of value stream mapping is not the maps, but to understand the flow of information and material and see waste ...and then use that understanding and insight to improve your process IMPLEMENT FUTURE STATE!

10 Current State Maps (CSM)
Value Stream Mapping Current State Maps (CSM)

11 The Current State Map A pictorial view, drawn with pencil and paper while observing the process on the factory floor, that shows how material and information currently flow Creates a baseline for future improvements to be measured against Clarifies understanding of how the current production system actually operates

12 Chapter 2 - The Value Stream
MSE507 Lean Manufacturing - Prof. David Shternberg Example Information Flow Customer Start with the Customer INVENTORY ICONS WITH PUSH ARROWS Material Flow California State University, Northridge

13 Chapter 2 - The Value Stream
Step 7 Chapter 2 - The Value Stream MSE507 Lean Manufacturing - Prof. David Shternberg Acme Steering Bracket Line 90/60/30 day forecasts State Street Assembly Production Control Michigan Steel Company 6 week forecast Daily Order Weekly Fax 18400 pieces/month L R 500 ft coils MRP MRP Tray = 20 pieces Daily Ship Schedule Weekly Schedule Weekly Schedule 2 shifts Tues. & Thurs. 1x Daily Shipping Ass’y #1 Ass’y #2 Stamping S. Weld #1 S. Weld #2 I I I I I I 1 Staging Coils 5 days 4600 L 2400 R 1 1 1600 L 850R 1 1 2700 L 1440R 1100 L 600R 1200 L 640R C/T=1 sec Uptime =85% 27,600 sec. avail. C/T=39 sec Uptime = 100% 27,600 sec. avail. C/O=10 m C/T=46 sec C/T=62 sec C/T=40 sec C/O=1 hour C/O=10 m C/O = 0 C/O = 0 Uptime = 80% Uptime = 100% Uptime = 100% 27,600 sec. avail. 27,600 sec. avail. 27,600 sec. avail. 7.6 days 1.8 days 2.7 days 2 days 4.5 days 5 days PLT = 23.6 days 1 sec 39 sec 46 sec 62 sec 40 sec PT = 188 sec. California State University, Northridge

Download ppt "Chapter 2 - The Value Stream"

Similar presentations

Ads by Google