GD&T Glossary

Read it in: http://www.etinews.com/gdt_glossary.html

GD&T (per ASME Y14.5M-1994) is an international language that is used on engineering drawings to accurately describe the size, form, orientation, and location of part features. It is also a design-dimensioning philosophy that encourages designers to define a part based on how it functions in the final product or assembly.

GD&T is an exact language that enables design engineers to "say what they mean" on a drawing, thus improving product designs and lowering cost. Process engineers and manufacturing use the language to interpret the design intent and to determine the best manufacturing approach. Quality control and inspection use the GD&T language to determine proper set-up and part verification.

By providing company-wide uniformity in the drawing specifications and interpretation, GD&T reduces controversy, guesswork, and assumptions throughout the design, manufacturing and inspection process.

Understanding how to apply and interpret GD&T correctly will help you:

• Create clear, concise drawings
• Improve product design
• Create drawings that reduce controversy, guesswork, and assumptions throughout the manufacturing process
• Effectively communicate or interpret design requirements for suppliers and manufacturing

However, because GD&T is such a precise language, it involves a great many symbols and terms. Here is a list of some of the topics involved in geometric dimensioning and tolerancing fundamentals and a short definition of each.

Cleanroom

Read it in: http://en.wikipedia.org/wiki/Cleanroom

Cleanrooms can be very large. Entire manufacturing facilities can be contained within a cleanroom with factory floors covering thousands of square meters. They are used extensively in semiconductor manufacturing, biotechnology, the life sciences and other fields that are very sensitive to environmental contamination.
The air entering a cleanroom from outside is filtered to exclude dust, and the air inside is constantly recirculated through high efficiency particulate air (HEPA) and/or ultra low particulate air (ULPA) filters to remove internally generated contaminants.
Staff enter and leave through airlocks (sometimes including an air shower stage), and wear protective clothing such as hats, face masks, gloves, boots and coveralls.
Equipment inside the cleanroom is designed to generate minimal air contamination. Even specialised mops and buckets exist. Cleanroom furniture is also designed to produce a minimum of particles and to be easy to clean.

Get calibration up to ISO standard

ISO 21501 for particle size determination has a particular section that is of relevance to the cleanroom sector. Steve Kochevar, Particle Measuring Systems, reviews Part 4 on calibration procedure and verification method for airborne particle counters
ISO 21501 has the title Determination of particle size distribution — Single particle light interaction methods. The standard comprises four parts, of which, only Part 4 will be discussed here.

http://www.cleanroom-technology.co.uk/technical/article_page/Get_calibration_up_to_ISO_standard/56451

High performance warranty management

by
KPIT Cummins

Reading in: http://www.kpitcummins.com/downloads/high-performance-warranty-management.pdf

Quality Policies Manual

look at a sample of Quality Policies Manual

Life cycle analysis and assessment

The concept of conducting a detailed examination of the life cycle of a product or a process is a relatively recent one which emerged in response to increased environmental awareness on the part of the general public, industry and governments.

The immediate precursors of life cycle analysis and assessment (LCAs) were the global modelling studies and energy audits of the late 1960s and early 1970s. These attempted to assess the resource cost and environmental implications of different patterns of human behaviour.

LCAs were an obvious extension, and became vital to support the development of eco-labelling schemes which are operating or planned in a number of countries around the world. In order for eco-labels to be granted to chosen products, the awarding authority needs to be able to evaluate the manufacturing processes involved, the energy consumption in manufacture and use, and the amount and type of waste generated.

reading article:  http://www.gdrc.org/uem/lca/life-cycle.html

5 Questions - Meet Kevin von Grabe

In this edition of our occasional "5 Questions" series we meet Kevin von Grabe, co-author of Building a Lean Fulfillment Stream.
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1. Who are you, what organization are you with, and what are your current lean-oriented activities?

2. How, when, and why did you get introduced to lean and what fueled and fuels the passion?

3. In your opinion what is the most powerful aspect of lean?

4. In your opinion what is the most misunderstood or unrecognized aspect of lean?

5. In your opinion what is the biggest opportunity for lean in today's world? How can that be accomplished?

Read more: http://www.evolvingexcellence.com/blog/2010/11/5-questions-meet-kevin-von-grabe.html#ixzz1BPEMUW8V
at Evolving Excellence