Resistance Spot Welding of Galvanized Advanced High Strength Steel DP-780 (Record no. 14718)

MARC details
000 -LEADER
fixed length control field 02555nam a22001817a 4500
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 671.52
Item number S531R
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Sharma, Leeladhar
245 ## - TITLE STATEMENT
Title Resistance Spot Welding of Galvanized Advanced High Strength Steel DP-780
Statement of responsibility, etc by Leeladhar Sharma
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication IIT Jodhpur
Name of publisher Department of Mechanical Engineering
Year of publication 2018
300 ## - PHYSICAL DESCRIPTION
Number of Pages xv,71p.
Other physical details HB
520 ## - SUMMARY, ETC.
Summary, etc This work was focused on the investigation and growth of resistance spot welding of automotive grade Advanced High Strength Steel DP-780. Experimental work was carried out on different resistance spot welded specimens. The main purpose of this work was to find out the adequate range of spot weld parameters for AHSS galvanized DP-780 steel. Selection of welding parameters should be suchthat nugget pulloutfrom the sheetcan be assuredto ascertainthe reliability of resistance spot welds. In this workone factor at a time (OFAT) approachwas followed to investigatethe influenceofwelding parameters viz. weld current, weld time, and electrode pressureon the nugget developmentand strength of the weldments. Effects of some other interdisciplinary data like, heat input, mean DCR, failure energy etc. were investigated as well. Increase inwelding current value abovea certain critical value led to the transition from interfacial failure mode to pullout failure mode resulting improved energy absorption capacity of the joint.Two stacksresistance spot welding is mostly used in automotive body structureapplications. Nevertheless, in automobile or other many applications,resistancespot welds between multiple stacksheets are requireddue to some limitations in structural designof the components. So here a small experimental analysis on three stack resistance spot welding in addition to two stack resistance spot welding was also carried out. of the resistance spot welds were investigated using for three stack resistance spot welding. Similarto two stack resistance spot weldingone factor at a time approachwas used to analyze and investigatetheinfluenceof variouswelding variablesviz. weldingcurrent, weldingtime, and electrode force on the nugget growth, nugget size and tensile shear strength<br/>
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Resistance Spot Welding
Topical Term MTech Theses
Topical Term Department of Mechanical Engineering
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Chhibber, Rahul
Personal name Arora, Kanwer Singh
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Thesis
Holdings
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      Not For Loan Reference S. R. Ranganathan Learning Hub S. R. Ranganathan Learning Hub Course Reserve 2024-01-24 671.52 S531R TM00137 2024-01-24 Thesis