AEC-Tech: 2012 Webinars
The following AEC-Tech webinars were presented in 2012. Follow the hyperlink to jump to the description and download the webinar recording on demand.
Incoming Die Inspection |
Incoming Die Inspection  |
| This webinar presentation covered new and existing die preparation, and the tools necessary for measuring die accuracy and precision as well as basics such as safety and protective gear for die personnel. It covered crucial things to look for when receiving dies such as critical tongue support, bearing burr, bearing polishing, stenciling, pocket blends, bearing transitions, bearing squareness, and backer clearance; Measuring covered die diameter, die thickness, lift holes, die openings, die pocket, die undercut, bearing depths, taper-seal angle, hardness, and keyways. Attendees learned about die cleaning including caustic, sand and bead blast, abrasive machining, polishing bearing, deburring bearing edge, nitriding, and application of boron nitride. And finally, the importance of Die Storage: preparation, and storage methods. Presented by: Lawrence Robbins of Icicle Consulting on November 14, 2012 |
| What the Boss Needs to Know About Press Maintenance |
This webinar offered expert advice, tips and tricks for improving press reliability. Press maintenance guru Al Kennedy of Kennedy Eurotech explored extrusion plant maintenance, focusing on reliability, and covering these topics:
Presented by: Al Kennedy of Kennedy Eurotech on September 19, 2012 |
Tolerances are measurable so they can be specified and mutually agreed upon by extruders and their customers. In order to apply tolerances to get a consistent shape, the extruder must understand three things: customer requirements, the extrusion process, and the basics of die design (metal flow). Presenters Dave Reichard and Rick Liscomb will provide you with valuable information that will increase your understanding of standard tolerances. Although not a complete overview of the standards, this presentation is an interpretation of commonly used Aluminum Association tolerances and how they are applied. This webinar provided an understanding of:
Presented by: Dave Reichard and Rick Liscomb, ETS Exco Tooling Solutions on August 29, 2012 |
| Pretreatment Process of Aluminum Extrusions |
| In some instances, "pretreatment" has been defined as simply the conversion coating placed on the aluminum extrusion surface. However, "pretreatment" is a series of stages, each with an important role in the surface preparation process. Cleaning, rinsing and the pretreatment all play important roles in ensuring that the aluminum extrusion is properly prepared for subsequent liquid or powder paint coatings. Without these steps a coating can't be properly applied and the material's lifespan will be shortened. This webinar covered areas such as types of cleaning, methods to manage the cleaner, rinse quality, a comparison of types of pretreatment coatings and quality tests. Presented by: Harry Adams, BCI Surface Technologies and Juan Rivera, BCI Surface Technologies on June 6, 2012 |
| Metal Flow in Extrusion |
| The flow of metal in the hot direct extrusion process is complex because it changes from front to back of a billet and from billet to billet during a run. Each stage of the cycle, billet loading, upset, flow of the billet through the container and finally flow through the die, has an effect on the quality of the final product. This brief review of metal flow starts by looking at how the billet upsets in the container and what this can do to air entrapment and blisters. When the billet is extruded, changes occur in the flow due to a continuous reduction in container friction. This can affect the way metal flows through the die and can lead to front-to-back shape variation in the finished product. This same container friction has the benefit of restricting flow of the billet skin into the product, but leads to the creation of coring at the back of the extruded length or as it is sometimes called extrusion defect. The webinar covered these aspects of metal flow and discuss the calculation of the location of the front- and back-end defects. Finally, the flow through dies is touched upon including the effect of dead zones on surface finish and streaking which was explored further in a presentation at ET '12. Presented by: Chris Jowett and Jerome Fourmann of Rio Tinto Alcan on March 7, 2012 |
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