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Investigation of plasma arc welding as a method for the additive manufacturing of titanium-(6)aluminum-(4)vanadium alloy components.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Investigation of plasma arc welding as a method for the additive manufacturing of titanium-(6)aluminum-(4)vanadium alloy components./
Author:	Stavinoha, Joe N.
Description:	1 online resource (196 pages)
Notes:	Source: Masters Abstracts International, Volume: 51-02.
Contained By:	Masters Abstracts International51-02(E).
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9781267558978

Investigation of plasma arc welding as a method for the additive manufacturing of titanium-(6)aluminum-(4)vanadium alloy components.
Stavinoha, Joe N.

Investigation of plasma arc welding as a method for the additive manufacturing of titanium-(6)aluminum-(4)vanadium alloy components. - 1 online resource (196 pages)

Source: Masters Abstracts International, Volume: 51-02.

Thesis (M.S.)--Montana Tech of The University of Montana, 2012.

Includes bibliographical references

The process of producing near net-shape components by material deposition is known as additive manufacturing. All additive manufacturing processes are based on the addition of material with the main driving forces being cost reduction and flexibility in both manufacturing and product design. With wire metal deposition, metal is deposited as beads side-by-side and layer-by-layer in a desired pattern to build a complete component or add features on a part. There are minimal waste products, low consumables, and an efficient use of energy and feedstock associated with additive manufacturing processes.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9781267558978Subjects--Topical Terms:

557493
Mechanical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Investigation of plasma arc welding as a method for the additive manufacturing of titanium-(6)aluminum-(4)vanadium alloy components.
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100 1 $a Stavinoha, Joe N. $3 1190816
245 1 0 $a Investigation of plasma arc welding as a method for the additive manufacturing of titanium-(6)aluminum-(4)vanadium alloy components.
264 0 $c 2012
300 $a 1 online resource (196 pages)
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500 $a Source: Masters Abstracts International, Volume: 51-02.
500 $a Adviser: Bruce Madigan.
502 $a Thesis (M.S.)--Montana Tech of The University of Montana, 2012.
504 $a Includes bibliographical references
520 $a The process of producing near net-shape components by material deposition is known as additive manufacturing. All additive manufacturing processes are based on the addition of material with the main driving forces being cost reduction and flexibility in both manufacturing and product design. With wire metal deposition, metal is deposited as beads side-by-side and layer-by-layer in a desired pattern to build a complete component or add features on a part. There are minimal waste products, low consumables, and an efficient use of energy and feedstock associated with additive manufacturing processes.
520 $a Titanium and titanium alloys are useful engineering materials that possess an extraordinary combination of properties. Some of the properties that make titanium advantageous for structural applications are its high strength-to-weight ratio, low density, low coefficient of thermal expansion, and good corrosion resistance. The most commonly used titanium alloy, Ti-6Al-4V, is typically used in aerospace applications, pressure vessels, aircraft gas turbine disks, cases and compressor blades, and surgical implants. Because of the high material prices associated with titanium alloys, the production of near net-shape components by additive manufacturing is an attractive option for the manufacturing of Ti-6Al-4V alloy components.
520 $a In this thesis, the manufacturing of cylindrical Ti-6Al-4V alloy specimens by wire metal deposition utilizing the plasma arc welding process was demonstrated. Plasma arc welding is a cost effective additive manufacturing technique when compared to other current additive manufacturing methods such as laser beam welding and electron beam welding. Plasma arc welding is considered a high-energy-density welding processes which is desirable for the successful welding of titanium.
520 $a Metal deposition was performed using a constant current plasma arc welding power supply, flow-purged welding chamber, argon shielding and orifice gas, ERTi-5 filler metal, and Ti-6Al-4V alloy substrates. Cylindrical weld metal deposits were built by employing an automatic wire feeder, turntable positioner, and vertical torch positioner.
520 $a A total of four cylindrical weld metal specimens were built with various combinations of essential plasma arc welding process parameters. The temperature of the weld metal deposit was taken with a thermocouple after allowing a specified amount of time to pass before depositing the next weld track. An analytical heat flow model was created that estimated the temperature of the weld metal deposit in relation to the number of tracks deposited. The analytical heat flow model was adjusted to match the experimental data that was obtained and revealed that the rate of production could be increased if the rate of thermal energy losses from the deposit were increased. Cross-sections of the weld metal deposits were examined to observe the effects of thermal energy input on the weld metal macrostructure, microstructure, and grain size. Results from the metallographic inspections revealed an increase in grain size and coarsening of the structure as the number of weld tracks in the deposit increased.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 557493
650 4 $a Materials science. $3 557839
655 7 $a Electronic books. $2 local $3 554714
690 $a 0548
690 $a 0794
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Montana Tech of The University of Montana. $b General Engineering. $3 1190817
773 0 $t Masters Abstracts International $g 51-02(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1516742 $z click for full text (PQDT)