A Novel Hybrid Process for Drawing Operations

Pender, Kyle Matthew; Ngaile, Gracious

doi:10.1115/msec2013-1253

Cited by 2 publications

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“…A hybrid process combining warm and electromagnetic forming of magnesium alloy sheet has been reported [3]. Penda and Ngaile [4] introduced a new drawing process that incorporate attributes of hydroforming. Hybrid processes which combines deep drawing and cold forging, hot extrusion and integrated equal channel angular pressing, and a combination of tube spinning and a tube bending have been presented [5].…”

Section: Introductionmentioning

confidence: 99%

Preliminary Investigation of the Process Capabilities of Hydroforging

Alzahrani

Ngaile

2016

Materials

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Hydroforging is a hybrid forming operation whereby a thick tube is formed to a desired geometry by combining forging and hydroforming principles. Through this process hollow structures with high strength-to-weight ratio can be produced for applications in power transmission systems and other structural components that demands high strength-to-weight ratio. In this process, a thick tube is deformed by pressurized fluid contained within the tube using a multi-purpose punch assembly, which is also used to feed tube material into the die cavity. Fluid pressure inside the thick tube is developed by volume change governed by the movement of the punch assembly. In contrast to the conventional tube hydroforming (THF), the hydroforging process presented in this study does not require external supply of pressurized fluid to the deforming tube. To investigate the capability of hydroforging process, an experimental setup was developed and used to hydroforge various geometries. These geometries included hollow flanged vessels, hexagonal flanged parts, and hollow bevel and spur gears.

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Section: Introductionmentioning

confidence: 99%

Preliminary Investigation of the Process Capabilities of Hydroforging

Alzahrani

Ngaile

2016

Materials

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Lubrication and Wear in Drawing Operations

Ngaile¹,

Lowrie²

2017

Friction, Lubrication, and Wear Technology

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Drawing is a process by which a workpiece is pulled against a die to produce a wire, bar, or tube with smaller cross sectional area compared with the initial stock. This article discusses the variables that affect the drawing process and the parameters that influence friction, lubrication, and wear. These parameters include process, lubricant, workpiece, and tooling. The article provides information on dry and wet lubrication in wire drawing. The dry lubrication refers to use of solid lubricants while wet lubrication refers to the practice of providing a liquid lubricant to the workpiece-die interface. The article describes the most common types and causes of die wear: abrasive wear, adhesive wear, surface fatigue wear, thermal fatigue wear, and catastrophic failure. It concludes with a discussion on the surface treatment and texturing that are used to reduce die wear in drawing operations.

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A Novel Hybrid Process for Drawing Operations

Cited by 2 publications

References 0 publications

Preliminary Investigation of the Process Capabilities of Hydroforging

Preliminary Investigation of the Process Capabilities of Hydroforging

Lubrication and Wear in Drawing Operations

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