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Die Casting News

NADCA Die Casting Congress Awards 2019 - Aluminum Winner Over 10 lbs

Posted by Hill and Griffith Company on Nov 6, 2019 9:05:13 PM

For the last 45 years, NADCA has sponsored its International Die Casting Design Competition to showcase outstanding die cast designs while acknowledging the continuous contribution die casters provide to the manufacturing industry. As die castings become more complex, higher quality, lower cost, and more unique, it becomes important for die casters to be involved in the process early in the product’s design phase. A die casting is not a machined part, sand casting, or an extrusion. It is critical for die casters to effectively communicate to the designer requirements to make a quality casting. The winners of the 2019 International Die Casting Competition have exhibited a close relationship with their customer to produce castings that have a complex design, high quality, and ingenuity. These castings often expand the market for die casting and reduce the cost of the part compared to the previous manufacturing method.

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Tags: Die Casting, Squeeze Casting Release Agents, Die Casting Lubricants, Die Casting Lubricant, Die Casting Process, die casting lubricant management, NADCA

The Benefits of Semi-Solid Casting for Aluminum Alloys

Posted by Hill and Griffith Company on Oct 16, 2019 7:00:00 AM

Excerpt from the August 2015 issue of Foundry Management & Technology by Pascal Côté, Giovanni Pucella, and Steve Midson

The Swirled Enthalpy Equilibration Device (SEED) represents a new possibility for high-volume, high-productivity, thin-walled casting production. Production process advantages:

  • Minimal residual porosity
  • Increased die-filling speed
  • Extended tool life
  • Minimal turbulence

Semi-solid metalcasting (SSM) was developed in the 1970s and became a commercial process for thixocasting (billet re-heating) in the 1990s, and for rheocasting (generating the semi-solid slurry directly from the liquid) in the 2000s. However, despite significant technical and economic advantages, as pointed out recently by Jorstad(1), SSM has never advanced to become the major metalcasting process anticipated by so many early investigators. Certainly, there have been a number of obstacles to the commercialization of SSM, such as the original thixocasting process being relatively expensive, early rheocasting processes not being fully competitive, along with improvements made to already-facilitated competing casting processes (squeeze casting, conventional die casting, and high vacuum die casting.)

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Tags: Die Casting, Squeeze Casting Release Agents, Die Casting Lubricants, Die Casting Lubricant, Die Casting Process, die casting lubricant management, Foundry Management & Technology magazine

Biofilms: How They Impact the Die Casting Process

Posted by Hill and Griffith Company on Oct 7, 2019 3:58:36 PM

Introduction

Within the die casting process, where molten metal is injected into a steel die, a release/lubricant agent is applied to the die to allow for proper release. These release agents are often referred to as die lubricants.

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Tags: Die Casting, Die Casting Lubricants, Die Casting Lubricant, Tim Cowell, Die Casting Process, die casting lubricant management

Mercury Marine expands diecast capabilities

Posted by Hill and Griffith Company on Jun 5, 2019 7:33:51 PM

Mercury Marine officially opened the 23,500 square foot expansion to its diecasting facility.

 
June 3, 2019, BOATING INDUSTRY

Mercury Marine officially opened the 23,500 square foot expansion to its diecasting facility. The $9M investment provides needed space for capacity increases, allowing the company to make complex blocks, driveshafts, and gear cases for Mercury’s outboards.
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Tags: Die Casting, Die Casting Lubricant, Die Casting Process, Die Casting Process Control Theory, Die Casting Surface Defects, NADCA, die casting soldering defects, Mercury Marine

NADCA - Online Education System - Free access to six courses

Posted by Hill and Griffith Company on May 22, 2019 3:24:44 PM

The North American Die Casting Association Offers a self-paced education through their online education system.

Online education and training offer students the convenience of taking courses anywhere and the ability to complete courses at their own pace. In addition, companies and individuals can save money on travel expenses and reduce time away from the office. The online education system is populated by taking weekly recordings of our webinars and converting them into online classes.
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Tags: Die Casting, Die Casting Lubricant, Die Casting Process, Die Casting Process Control Theory, Die Casting Surface Defects, NADCA, die casting soldering defects

GRIFLUBE® Bio-Syn Biodegradable Hydraulic Fluid

Posted by Dr. Morris Murphy on May 15, 2019 2:44:21 PM

GRIFLUBE® Bio-Syn will readily biodegrade as defined by OECD 301 C; and will easily exceed the 60% minimum biodegradability standard, converting CH3-CH2 molecular groups to CO2 within a maximum of 7 days, which exceeds the biodegradability rate of any polyether or polyol ester type fluid.


Hill and Griffith is pleased to submit the following technical information on our Factory Mutual approved fire resistant GRIFLUBE® Bio-Syn hydraulic fluid, as the proactive chemistry of choice for high production foundries, steel mills, casting operations, refineries, and any application which might be predisposed to elevated temperature extremes and have the potential for fire. GRIFLUBE® Bio-Syn was researched and designed as a superior biodegradable fire resistant hydraulic fluid, in comparison to conventional polyol esters, PAG/polyethers, and especially phosphate esters; to offer greater latitude relative to toxicological and environmental compliance, enhanced fire resistance, and maximum lubrication value, for extended wear characteristics in vane and axial piston pumps.

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Tags: Die Casting, Die Casting Lubricant, Die Casting Process, Die Casting Process Control Theory, GRIFLUBE® Bio-Syn Biodegradable Hydraulic Fluid

NADCA - Thermal Control Webinar Series - Diecasting

Posted by Dr. Morris Murphy on May 8, 2019 9:29:10 AM

Controlling the temperature of a die casting die through the location of cooling lines is critical to performance and die life.


A properly designed system of water and/or oil lines will process heat energy so the die can be operated productively with the highest part quality possible. NADCA has created a three level approach to addressing thermal control. This series is broken down by beginner, intermediate and advanced courses suitable for people with varying levels of knowledge in this area.

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Tags: Die Casting, Die Casting Lubricant, Die Casting Process, Die Casting Process Control Theory, NADCA, Dr. Morris Murphy

Die Casting Award at CastExpo 2019

Posted by Hill and Griffith Company on May 2, 2019 3:46:57 PM

An Outstanding Achievement award was on display at CastExpo 2019 for this T1XX side door mirror, reinforcement bracket.

It was made by Magna Cosma Casting Michigan, Battle Creek, Michigan. The material is aluminum alloy, 5S-F temper. The process is high-pressure, vacuum die casting. The weight is 1.31 pounds. The dimensions are 14.5 inches by 6.4 inches by 15.4 inches. The application is for attachment points and load carrying for truck side door mirror. The customer is General Motors.

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Tags: Die Casting, CASTEXPO, Die Casting Lubricant, Die Casting Process, Die Casting Process Control Theory

"The Basics of Permanent Mold," Metal Casting Design & Purchasing magazine article review

Posted by Hill and Griffith Company on Apr 24, 2019 4:37:02 PM

Known for its ability to achieve tight tolerances, superior surface finishes and high mechanical properties, permanent mold is a quality option for many applications.


Fig. 1. This aluminum transmission main housing was cast via semi-permanent mold using 27 sand cores.

Unlike sand and plaster molding processes, where the mold is recycled after every part, the molds used in permanent mold casting can be used to produce thousands of components before they have to be repaired. The permanent mold casting process is known for its ability to achieve tight tolerances, superior surface finishes and high mechanical properties. Its ability to achieve these details is based on the fundamental principle of this process—the pouring of molten metal into reusable metal molds.

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Tags: Die Casting, Die Casting Lubricant, Die Casting Process, Die Casting Process Control Theory, Metal Casting Design & Purchasing Magazine

NADCA, "Take a Detailed Dive into the Various Methods of Diecasting Process Control"

Posted by Dr. Morris Murphy on Apr 17, 2019 12:10:10 PM

It is important to know what type of control method is applicable to each of the die casting machine/die/process systems.

North American Diecasting Association (NADCA) has created a three level approach to addressing process control. This series is broken down by beginner, intermediate and advanced courses suitable for people with varying levels of knowledge in this area. Learn more at this NADCA page.

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Tags: Die Casting, Die Casting Lubricant, Die Casting Process, Die Casting Process Control Theory, NADCA Education

 


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