Six sigma comes from the field of SPC - Statistical Process. Machine capability (dimension dispersion range)is regarded as 3 sigma. It is always considerd as normal distribution. The process must be stable, otherwise it is not controlleable and not suited for SPC.
The purpose of the 3 , 6, 9...
Denny
As far as I know 5 years used to be quit an exceptable time limit. Today with the advancement of technology and new products I would say that 5 years is too risky.
You may use my colleagues advise of including substantial "scrap value" for the sorting machine at the end of 5...
griffengm
Sorry for late response
Creativity and innovation is a must in the design stage,
Drawing task requires to make decisions as to clarity, readability and unambiguity. Not creativity.
process planning requires a long experience in manufacturing, imaginative application of the tools...
salcha
I think that what you need is a PERT time and cost system.
I would not recommend the theory of change management, TQM, Continuous Improvement, Financial Management, etc.
From the PERT system to may get all the information and control you need. It is a simple and rough program, and it...
Lean manufacturing is a human activity, but directed and systematic. It depends on the individual creativity and inventiveness. It is in the sane group of systems like TQM, TOC, BPR, JIT etc.
I am in favour of technical solutions, which are independent of human inspiration.
One of the problems...
ProcessDave (Automotive) Oct 1, 2003
I wonder how are you performing your time study, and for what purpose.
For machine controlled (automatic machine) you cannot assume that the theoretic machine pace will be the production rate. You might include breaking, adjustment and personnal needs...
Dear leanIE (Industrial)
There are many methods for shop floor planning and control. You mentioned the ; Lean , Kanaban but one might add agile, JIT Flexible manufacturing , tOC etc.
You will find a summary of over 100 methods in a book:
HANDBOOK OF PRODUCTION MANAGEMENT METHODS published by...
Dear feelerfred (Aerospace
A good resource for RESEARCH capacity planning you may fing in the book:
Restructuring the Manufacturing Process
Published by The St. Lucie Press / APICS Series on resource management
Hi imaz (Mechanical)
When talking about tolerances one actually means "allowence" which means the space between ajoining parts. The allowence may be divided between the two parts (i.e. shaft and hole) usually according to the processing capability.
Stacking tolerances has to do with...