The Dexmet Blog | Copper (2)

Applications made possible by using Expanded Metal

By: admin September 10th, 2013

In 2009, three researchers, Dimas Smith from the Universidad Francisco de Miranda, Carlos Graciano and Gabriela Martinez from the Universidad Simon Bolivar published a paper that discuss the use of expanded metal in engineering applications. While some of the applications discussed were widely known, we appreciated the fact that the paper highlighted the advancements made by the use of expanded metal in applications from several different market sectors.

Confirming A350 XWB safety with lightning strike evaluations

By: admin May 10th, 2013

Lightning strike testing has been performed for the A350 XWB, completing a key required step in preparations for this next-generation Airbus jetliner’s maiden flight.

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Expanding Technology at the 19th Group Exhibit Hydrogen Fuel Cell Show 2013

By: admin April 19th, 2013

Dexmet - more than a manufacturer but also a community member

By: admin January 24th, 2013

Dexmet is well-known as a manufacturer of expanded materials but do you also know that we support the efforts being carried on by professional organizations in emerging applications, here and abroad.

Imitation best form of flattery?

By: admin June 27th, 2012

There is an old saying that imitation is the best form of flattery and while it may be true in some cases, in the world of manufacturing that is not always the case.

What effect does tarnish on copper have on product parameters?

By: admin March 22nd, 2012

This is one of the more common questions that we are asked. Customers are primarily concerned with adhesion and surface resistance. Does the surface resistance increase with increased tarnish levels? Will epoxy adhere to a tarnished copper surface? To try and provide an answer, we undertook some elementary evaluations of copper samples with varying levels of tarnish identified using the L*a*b* color space coordinates. For those unfamiliar with the L*a*b* system, the short answer is that every color can be defined in terms of 3 numbers. The first number, “L”, is for lightness which ranges from 0-100, with 0 being black and 100 being white. Everything else is shades of gray. The second number, “a”, is either positive (Red) or negative (green). The third number, “b”, is either positive (yellow) or negative (blue). That is it in a nutshell. All shades of copper and its tarnish can be defined in this way.

2011 in review

By: admin January 3rd, 2012

The WordPress.com stats helper monkeys prepared a 2011 annual report for this blog.

Dexmet offers corrugated expanded material to client base

By: admin October 21st, 2011

Dexmet now offers a new process variation of corrugating their precision expanded materials. This process variation was developed for high-performance applications that require the expanded material to be much thicker or larger, that require more surface area and better cross-directional flow.