The material presented in this video are some highlights from NADCA’s online webinar - Cooling Line Placement in New Die Steels. Increasing productivity is important to the die casting industry. The R&D course, Cooling Line Placement in New Die Steels, addresses how close cooling lines can be placed to the cavity surface and why. This course includes an explanation of the technology and successful results of use.Read More
Die Casting News
The material presented in this video are some highlights from NADCA’s online webinar - Die Casting Defects - presented by Dr. Morris Murray of M. Murray & Associates. Morris discusses gas porosity and its major sources, and goes into some detail on each source.Read More
The material presented in this video are some highlights from NADCA’s online webinar - High Integrity Die Casting: Alloys for High Integrity Die Casting. In this webinar, all aspects of aluminum high integrity die casting alloys will be covered: from AA numbering, basic metallurgy, the role of alloying each element, impurities and their impact on part quality and properties, all the way to different alloy families and existing alloys currently used or under development, with their advantages and disadvantages, current and potential applications as well as achievable properties (using different heat treatments) with each of them.Read More
The material presented in this video are some highlights from NADCA’s online webinar - Die Casting Defects - Inclusions, Leakers and Cracks. This course discusses various types of inclusions and corrective measures to minimize inclusions. In addition, causes of leakers and corrective measures are presented. Lastly, the various causes of cracks in die castings are discussed.
For information on purchasing a downloadable copy of this webinar in its entirety, please visit: http://www.diecasting.org/store/detail.aspx?id=WEB297Read More
The material presented in this video are some highlights from NADCA’s online webinar - Die Casting Defects - Shrinkage Porosity. This course describes how to identify shrinkage porosity, discusses the causes, and provides corrective measures to minimize shrinkage porosity.Read More
Failure of dies is typically caused by thermal fatigue cracking or gross cracking. Other modes of failure include soldering to the die surface, erosion and corrosion of the die surface. It is clear that many factors can impact die life, including steel composition, heat treatment conditions, fabrication techniques and die casting processing parameters. The approach used in this 6-part webinar series is to summarize recent research published by NADCA on extending die life.Read More
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.
Chapter 8: Release Materials
Excerpt from the NADCA Publication E-410 by E. A. Herman
When the die has opened and the casting has been ejected, but before the die closes again, the cavity areas of the die receive an application of a release material. The application is usually made by spraying the material as a fine mist. Sometimes the application is not made every time the die is open, but only after some small number of shots. The purpose of the release material is to keep the casting from sticking to the die. The material is called by a variety of names including “lube,” “die spray,” “die lube,” “spray,” “parting” and “release.”
The practical die caster knows that the release material can have a significant influence on the performance of the die casting die. Sometimes, by changing the type or brand of material or by changing the application pattern or quantity, the operating performance of the die is improved. The improvements are not limited to the sticking of the castings to the die. Often surface finish, productivity, porosity or even warpage is affected. The release material and its application is a significant processing variable.
Fig. 8-1. The die designer should supply a water spray diagram like the one shown here for the processing engineer and the operating personnel. The dilution ratio must then be made to get the correct amounts for both water and release material on each area of the die.
Day 2 of the Die Casting Congress events
We are looking forward to seeing you at the 2019 Die Casting Congress & Tabletop held October 1-3, 2019, at the Huntington Convention Center of Cleveland in Cleveland, Ohio. This event will include three days of Congress sessions.
Ryan Canfield, Angela Cox and the rest of Hill and Griffith's sales team are ready to answer your die casting questions.
NADCA shares some common facts about the Die Casting Industry
Die casting is a versatile process for producing engineered metal parts by forcing molten metal under high pressure into reusable steel molds. These molds, called dies, can be designed to produce complex shapes with a high degree of accuracy and repeatability. Parts can be sharply defined, with smooth or textured surfaces, and are suitable for a wide variety of attractive and serviceable finishes.
Die castings are among the highest volume, mass-produced items manufactured by the metalworking industry, and they can be found in thousands of consumer, commercial and industrial products. Die cast parts are important components of products ranging from automobiles to toys. Parts can be as simple as a sink faucet or as complex as a connector housing.
Hill and Griffith Customer Service
We're known for our hands-on approach. Let us visit your plant and recommend metalworking fluids that suit your needs. Products that represent the latest in technology and ongoing research that enhance competitiveness and increase productivity.
We are pleased to provide samples in quantities large enough to allow you to "try before you buy." Metalworking fluids, Die casting and squeeze casting lubricants, Casting operations products, Water glycol, Trim press lubricants, Surface protection for casting storage, Corrosion protection for die storage, Cleaners for machines and dies, Corrosion protection for machines, Heat treatment quenchants, and Heat-transfer fluids. Also, Industrial lubricants Griflube®, Hydraulic fluids with fire-resistant and anti-wear properties, Bio-Syn natural ester-based hydraulic fluid, and Way oil knuckle lubes.
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On-site process surveys, Defect investigations, Product testing, Tooling start-ups and Statistical process controls and much more. Also, lab facilities are available to provide testing upon request.