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More from Taylan Altan, Ph.D.
- From The Fabricator
R&D Update: Evaluating lubricants using the stamping lubricant tester (SLT)
- By Taylan Altan, Ph.D.
- Aug 15, 2017
- Bending and Forming
- Article
Friction between a sheet blank and a press’s dies plays an important role in stamping parts. Fracture and wrinkling are influenced by frictional behavior, and many stampers use lubricants to reduce friction. To produce quality parts, stamping lubricants most perform at high pressures; high...
- From The Fabricator
R&D Update: Reducing springback in U- and hat-bending of AHSS
- By David Diaz-Infante, Dr., Dr. Hakan Gurun, and Taylan Altan, Ph.D.
- Jul 18, 2017
- Bending and Forming
- Article
Advanced high-strength steels (AHSS) are used widely in the automotive industry to reduce body weight and increase crash resistance. Precision and reduction of springback are challenging when forming these alloys, so the industry is continuously developing new techniques to compensate for...
- From The Fabricator
R&D Update: The effects of servo press motion and servo cushions on stamping results
- By Ali Fallahiarezoodar, David Diaz-Infante, Dr., and Taylan Altan, Ph.D.
- Jun 20, 2017
- Bending and Forming
- Article
New materials require new manufacturing methods. Deep drawing of advanced high-strength steel (AHSS) and certain aluminum alloys (such as 6XXX) requires flexible forming operations. Therefore, the use of servo presses and servo hydraulic cushions continues to increase. Servo presses are used mainly...
- From The Fabricator
R&D Update: Practical use of servo hydraulic cushions in stamping operations
- By Ali Fallahiarezoodar, Darrell Quander Jr., Pratik Mehta, and Taylan Altan, Ph.D.
- Mar 15, 2017
- Bending and Forming
- Article
In deep drawing, with or without draw beads, the sheet metal blank is restrained at the periphery of the die by the blank holder force (BHF). The relative motion between the punch and the die forces the metal to flow into the die cavity (see Figure 1). The quality of the formed part is determined...
- From The Fabricator
R&D Update: Predicting springback when bending AHSS and aluminum alloys, Part II
- By Aanandita Katre, Ali Fallahiarezoodar, and Taylan Altan, Ph.D.
- Jan 12, 2017
- Bending and Forming
- Article
Editor’s Note: This article is Part II of a two-part series. Part I, which appeared in the November/December 2016 issue, discussed the challenges of determining Young’s modulus, one of the most important parameters for springback prediction.
- From The Fabricator
R&D Update: Predicting springback when bending AHSS and aluminum alloys, Part 1
- By Aanandita Katre, Ali Fallahiarezoodar, and Taylan Altan, Ph.D.
- Dec 5, 2016
- Bending and Forming
- Article
Editor’s Note: Part II of this article, which will appear in the January/February 2017 issue, will discuss the results and case studies of the newly introduced inverse analysis method for improving springback prediction. In the automotive industry, the use of advanced high-strength steels (AHSS)...
- From The Fabricator
R&D Update: Evaluating lubricant using the cup drawing test
- By Cliff Hoschouer, David Diaz-Infante, Dr., Frank Kenny, Jeff Jeffery, and Taylan Altan, Ph.D.
- Oct 10, 2016
- Bending and Forming
- Article
Lubrication plays an important role in sheet metal forming by affecting metal flow and reducing the possibility of fracture during forming. A number of tests are used to evaluate lubricant performance, including the strip draw test, the twist compression test, and the cup drawing test. The cup...
- From The Fabricator
R&D Update: Practical methods for estimating formability of sheet materials
- By Ali Fallahiarezoodar, Berk Aykas, David Diaz-Infante, Dr., and Taylan Altan, Ph.D.
- Jul 7, 2016
- Bending and Forming
- Article
Formability is the ability of a sheet material to deform without failure or fracture. Information on formability helps process and tool design engineers predict failure during analysis of sheet metal forming processes for tool design. Formability information also is used to evaluate...
- From The Fabricator
R&D Update: Controlling material flow in drawing operations
- By Ali Fallahiarezoodar, Taylan Altan, Ph.D., and Zeming Yin
- Jun 17, 2016
- Bending and Forming
- Article
The researchers at The Ohio State University's Center for Precision forming perform research on controlling material flow in drawing operation using CNC hydraulic cushions to help improve drawability.
- From The Fabricator
R&D Update: Lightweighting in the automotive industry using sheet metal forming, Part 2
- By Ali Fallahiarezoodar and Taylan Altan, Ph.D.
- Mar 9, 2016
- Bending and Forming
- Article
Editor’s Note: Part I of this article appeared in the January/February 2016 issue.
- From The Fabricator
R&D Update: Lightweighting in the automotive industry using sheet metal forming, Part 1
- By Ali Fallahiarezoodar and Taylan Altan, Ph.D.
- Jan 7, 2016
- Bending and Forming
- Article
The Ohio State University's Center for Precision Forming provides an overview of design considerations and materials used in lightweighting in the automotive industry in the first part of a two-part series.
- From The Fabricator
R&D Update: Flow stress data and FE simulation
- By Ali Fallahiarezoodar, Taylan Altan, Ph.D., and Zeming Yin
- Nov 30, 2015
- Bending and Forming
- Article
Finite element (FE)-based computer software commonly is used in the sheet metal forming and stamping industry for die design and for predicting metal flow and thinning in the formed part. It is a useful tool for predicting and preventing forming defects such as fracture and wrinkling. However,...
- From The Fabricator
R&D Update: Determining flow stress data by combining uniaxial tensile and biaxial bulge tests
- By Ali Fallahiarezoodar and Taylan Altan, Ph.D.
- Oct 8, 2015
- Bending and Forming
- Article
In the sheet metal forming industry, finite element (FE) simulation is an important tool for fabricators predicting metal flow, optimizing geometry, and selecting process variables before developing new dies. The accuracy of the simulation results depends highly on the accuracy of the input...
- From The Fabricator
R&D Update: Forming aluminum alloys at elevated temperatures, Part II
- By Taylan Altan, Ph.D. and Long Ju
- Jul 1, 2015
- Bending and Forming
- Article
Elevated-temperature (ET) forming of aluminum can be accomplished isothermally or nonisothermally. In isothermal warm forming, the die, blank holder, and punch are heated. In nonisothermal deep drawing, the die and blank holder are heated, and the punch may or may not be cooled. The die and punch...
- From The Fabricator
R&D Update: Forming aluminum alloys at elevated temperatures, Part 1
- By Taylan Altan, Ph.D. and Long Ju
- Jun 11, 2015
- Bending and Forming
- Article
To reduce vehicle weight, automotive manufacturers are using advanced high-strength steels (AHSS) and aluminum alloys, formed at room temperature, as well as hot stamping of boron steels. A few OEMs and Tier 1 suppliers also have started warm forming aluminum alloys, usually 5000 and 6000 series,...
- Podcasting
- Podcast:
- The Fabricator Podcast
- Published:
- 04/16/2024
- Running Time:
- 63:29
In this episode of The Fabricator Podcast, Caleb Chamberlain, co-founder and CEO of OSH Cut, discusses his company’s...
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