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Save Money By
Understanding Variance and Tolerancing
Manufacturing processes
are inherently variable, which results in component
and assembly variance. Unless process capability,
variance and tolerancing are fully understood,
incorrect design tolerances may be applied, which
will lead to more expensive tooling, inflated
production costs, high reject rates, product recalls
and excessive warranty costs. A methodology is
described for correctly allocating tolerances and
performing appropriate analyses. [Continued
Article]
Quality 101: Defining GD&T
Geometric dimensioning
and tolerancing has been evolving for decades, and
is now a crucial practice for manufacturers hoping
to compete globally. [Continued
Article]
Global
Dimensioning and Tolerancing, The New GD&T
Today, most manufacturing
companies are abandoning their corporate standards
on dimensioning and tolerancing in favor of
internationally recognized standards. The two major
choices in standards today are the Collection of ISO
standards or ASME Y14.5M-1994. There is currently
about a 70% overlap in these two standards. Most
drawing requirements may be specified by staying
inside this overlap. [Continued
Article]
Process
Capable Tolerancing (PCT)
Quality costs often
consume some 25% of total revenues in manufacturing
business. Even the quality leaders face intimidating
quality losses. The vast majority of quality costs
are failure costs that include rework, scrap,
warranty, product liability claims and recall costs.
In general, the cost of failure is the difference
between the actual production costs and what it
would cost if there were no failures. [Continued
Article]
Meeting in
Maple Lake Sets Manufacturing Standards
Decisions were being
made in Maple Lake last week that will have an
impact on manufacturing across the country and
throughout the world. Those decisions are the
result of a meeting hosted by John Rivers of Product
Technologies Inc. for an American Society of
Mechanical Engineers committee which sets the
standards for casted, forged and molded parts. [Continued
Article]
Engineering Masters
Advanced GD&T
Over a year ago
Universal Engineering implemented the ANSI
14.5M-1982 standards. At that time all
Engineering personnel went through a 32-hour
training course that covered the basis of Geometric
Dimensioning and Tolerancing (GD&T).
[Continued
Article]
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