Die Casting News

Die Casting Porosity Problems? 

Posted by Hill and Griffith Company on Apr 4, 2018 2:59:19 PM

Learn How to Predict, Measure, Control and Reduce Die Casting Porosity

NADCA surveyed designers and purchasers about the advantages and problems with die cast components. The companies that used die cast products were asked to identify some of the common problems they encounter with die castings. More than one in three specifically identified `Porosity’ as a common problem.

Since porosity is a common concern among die casters NADCA created a series of webinars focusing on the various aspects of porosity. Each presentation will not only address important information on the topic but also provide time for questions, answers, and discussion.

Learn more and register for the webinar.

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Part 1 - An Introduction to the Causes of Porosity - This webinar will cover the causes of porosity. In particular the sources of shrink porosity and gas porosity will be explained. It will conclude with traditional concepts for reducing porosity formation.
Date: April 12, 2018

Part 2 - Control Porosity with Processing Parameters - Many die casting process variables affect the final porosity level in a casting. This webinar will discuss the effect of these different parameters on porosity. It will connect these processing parameters back to the underlying porosity formation mechanisms.
Date: April 17, 2018
 
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Part 3 - Design for Reduced Porosity - Part design is the number one factor affecting the final porosity in a casting. This is due to the physical sources of porosity. This webinar will explain casting and tooling design choices that can be used to control porosity.
Date: April 18, 2018

Part 4 - Predicting and Measuring Porosity - Achieve reduced porosity through adequate measurement and prediction. This webinar will discuss different ways to predict porosity. In addition it will explain some basics of digital porosity measurement. Any successful porosity reduction program must include porosity prediction and measurement.
Date: April 19, 2018

Presented by Dr. Steve Midson, The Midson Group, Inc.

Purchase a single webinar
Part 1 - An Introduction to the Causes of Porosity
Part 2 - Control Porosity with Processing Parameters
Part 3 - Design for Reduced Porosity
Part 4 - Predicting and Measuring Porosity

These webinars will take place at 1 pm CDT on the dates listed. The cost per webinar is $69 for Corporate Members, $99 for Individual Members or $119 for Non-Corporate Members. Please note that registering for a webinar grants you access to the live broadcast on the given date. No recordings or pdfs of the presentation will be issued.

(Thanks to NADCA for their newsletter today. The slides are from a published webinar we posted about earlier here.)


What is Die Casting Porosity? 

Gas porosity is the biggest single problem in die casting. High gas content prevents heat treating or welding and makes strength unpredictable. There are three major sources of gas porosity for die castings: Trapped air, Steam, Gas from lubricant. From NADCA EC-515 Die Casting Defects Course Review, Basics for controlling die casting defects - By Dr. Steve Midson.


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