However, exceptions cannot be made for products that are poorly constructed, putting an onus on manufacturers to maintain high standards of quality while producing at a quicker pace. As a result, corrosion testing remains an important step in the manufacturing process, particularly for those who develop products that will spend some point in their life cycle outdoors or exposed to harsh elements. Access to dependable metal finishing equipment and corrosion test equipment is crucial, which is why businesses around the country partner with Auto Technology. Auto Technology custom-builds this equipment to the specifications of each customer, but our own equipment is also available to contract for businesses that require specialized testing services and cannot invest in a new machine.

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We all live with the illusion of boundaries that we cannot cross. Illusions span our personal lives as well as our work lives.

Every illusion will even ually meet its day of reckoning as the pursuit of truth is relentless. The truth will stand firm as the illusions are eventually replaced with a deeper understanding of reality.

I hope your quest for developing reliable products is accompanied with the same degree of passion exemplified in these poems. In The Beginning…. From the start to spell: the close. And the B is for Bear. The H is for Hare. But then something happened…….

And the R is for Rat. This document provides detailed understanding of when to apply, and how to apply the requirements described in the November version of GMW This document provides historical explanations as o where the test parameters were derived and how they should be used. Explana ion is given as to what tests should be run based on the nature of the product being tested. ADV stands for Analysis, Development and Validation and describes the sequence of activities that should occur during product development.

Analysis refers to activities that can be carried out on the design without the need for a physical product. The analysis of the circuit design would be a typical task that can occur prior to making actual parts. Development refers to activities that can be carried out on a very small sample of product as soon as physical product is available. These are tests that are designed to reveal outlier weaknesses by testing with stress beyond the specification. This activity is designed as an early warning opportunity to correct weaknesses at a time when correction is most economical.

These tests are not intended to demonstrate reliability. These activities fall into two categories: Qualitative Tests that have empirically shown their ability to discriminate between good and bad product. Quantitative Tests that statistically demonstrate reliability requirements. Study the section on Failure Mechanisms and Terms. This must be clearly conveyed to the supplier.

Remember, not every test needs to be run on every product. Learn what each code le er means by reviewing tables 2 through 7. You must learn and understand these codes. You must suggested based on the location discuss the tests, the test setups, of your product how the test was run, what was observed, when it was observed, Working from left to right, take and you need to see, touch, and each test category code letter, inspect a sample of the parts that turn to the appropriate table for were tested.

This hands-on, that code letter, and make sure engineer-to-engineer discussion is this code letter properly essential in knowing and describes your product.

If understanding how your product is necessary, change the letter to really performing on test. Proceed and should be the focal point in the from letter to letter until all test Reliability Design Reviews that are categories have been reviewed. The Write down your final choice for cadence of the Reliability Design the code sequence Reviews are identified in the ADV Process Chart This code sequence must be identified in the SOR that is sent The code sequence establishes the to the supplier major parameters for many of the tests required by GMW, but does not define all testing Supplier necessary.

What type of product does GMW apply to? The Handbook provides a level of technical understanding not available elsewhere. Who else uses GMW besides me? Do Ford, Chrysler, and Toyota use a similar document? I have reviewed and studied he documents from Chrysler, Toyota, and Volkswagen, as a benchmarking effort, to ensure that GM requirements are not lacking in any particular area.

Conclusion: GMW is exceptionally comprehensive without being excessive. Our suppliers and competition recognize the value of the comprehensiveness of GMW How many ways can I apply a water type stress, and which of these should I use? All of the following tests have value. The Water-Spray-Thermal-Shock Test should be considered optional; all of the rest of the tests should be run on the product. The code 8 in this same portion of the requirement defines a submersion test in water.

You should run one of these tests. Only used where the seal test is not going to be used and a hot-sealed-product will be splashed with water.

You should run this test.


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Along with other corrosion tests, GMW is used to evaluate the corrosive properties associated with manufactured components. According to GM, this standard is for any device that can connect to or is part of the vehicles electrical system, while considering the mounting location of such components. The other unique property about this specification is that it allows the user to have the option of having power supplied to the device. GM give 3 different categories of Operating Types and depending on which category you would like the component to fall under, will help determine which test is better suited for your component. The testing categories associate this specification include Mechanical, Electrical, Climatic, and Enclosure. Within each category are a large variety of test methods that can be used to evaluate your component.



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