Gary Morphy

Project Engineer
Excella Technologies
425 Hespeler Rd
Suite 521
Cambridge, ON N1R 8J6
Canada


Phone: (519) 772 - 5748 x101

Contact via email

Tube Hydroforming Design Flexibility—Part IX:

February 7, 2006

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In this article Gary Morphy reviews high-pressure and pressure sequence hydroforming and discusses factors to consider when deciding which process is best for a particular application. The decision should be based in part on anticipating future needs.

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Tube Hydroforming Design Flexibility—Part VIII: Dimensional Stability

June 14, 2005

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Whether they are producing automobiles or hydroforming press parts, designers, manufacturers, and assembly personnel are very concerned about dimensional stability. Surfaces and holes must be located in a specified range and smaller is better. Concern escalates as the drive to improve quality and reduce build tolerances and problems increases.

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Tube Hydroforming Design Flexibility—Part VII: Holes

February 8, 2005

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When making holes in hydroformed parts, fabricators have many choices—milling, drilling, laser cutting, plasma cutting, flow drilling, post-piercing, and hydropiercing.

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Tube Hydroforming Design Flexibility—Part VI

September 14, 2004

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Tube hydroforming reshapes a tube from a normally round cross section to a desired shape. The final shape, usually rectangular, develops along the part length. The cross-sectional periphery may be consistent throughout the part and equal to the original tube, or it can be expanded in localized...

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Tube Hydroforming Design Flexibility—Part V

February 26, 2004

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Combined with the information in Part III of this series that focused on cross-section expansion before hydroforming, this article discusses the most common options used in preparing tube for hydroforming and achieving the designer-intended part. Properly executing bending and cross-section...

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Tube Hydroforming Design Flexibility—Part IV

October 23, 2003

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Material selection is a very important aspect of design flexibility when striving to fulfill part functionality requirements. Choosing the correct material is fundamental to making the part effectively and efficiently. The way a material is formed and the conditions it needs to withstand for...

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Tube Hydroforming Design Flexibility—Part III

April 24, 2003

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The last article in this series noted that variable periphery design, or cross-section expansion, often is thought to be the most important aspect of tube hydroforming design flexibility. Expansion in the hydroforming die commonly is assumed to be the most efficient and most effective method,...

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Tube Hydroforming Design Flexibility—Part II

October 10, 2002

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It's difficult to overemphasize the importance of cross section expansion when you're talking about successful and innovative hydroforming of steel tubing. Overemphasizing one aspect of the tube hydroforming design process can take attention away from others and result in less than optimal design....

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Tube Hydroforming Design Flexibility—Part I

May 16, 2002

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Design flexibility is something that all automotive designers want, but too often they lack a thorough understanding of what that means—what aspects of design flexibility apply to a certain part and their effect on cost. A methodology often is adopted when (or even before) a part development...

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Hydroforming a new front automotive structure

October 25, 2001

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Hydroforming the parts in a vehicle structure can be of immense benefit on several counts, as a review of a recent project at the author's company can attest.

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