Study on Homogenization Annealing of Brass Wire with Electroplated Zinc

Friction Stir Welding (FSW) is a topical and propitious solid-state joining process producing economical and strengthened joints of age-hardened and heat-treatable Aluminium Alloy AA 6082-T6. Mechanical and fractural behaviour of weldments were investigated in order to find crack initiation and necking on the weld zone thereby perceiving the complete behaviour of fracture occurred near the weld zone. Weldments are fabricated by employing four tool pin profiles namely MX-TRIVEX, A-SKEW, Three flat threaded and Concave shouldered MX-TRIFLUTE tools at various rotational speeds 1000 rpm, 1200 rpm and 1400 rpm at single traverse speed 25 mm/min. EXCETEX-EX-40 CNC wire cut EDM with 0.25 mm brass wire diameter has been employed to perform the extraction of tensile test specimens from the weldments according to ASTM E8M-04 standard. Tensile test was performed on elctromechanically servo controlled TUE-C-200 (UTM machine) according to ASTM B557-16 standards Maximum Ultimate Tensile Strength (UTS) of 172.33 MPa (55.5% of base material) and 0.2% Yield Stress (YS) of 134.10 MPa (51.5% of base material) were obtained by using A-SKEW at 1400 rpm, 25 mm/min and maximum % Elongation (%El) of 11.33 (113.3% of base material) was obtained at MX-TRIVEX at 1000 rpm, 25 mm/min. Minimum UTS of 131.16 MPa (42.30% of base material) and 0.2% YS of 105.207 MPa (40.46% of base material )were obtained by using Concave shouldered MX-TRIFLUTE at 1400 rpm, 25 mm/min. Minimum % El of 5.42 ( 54.2% of base material) was obtained by using A-SKEW at 1000 rpm, 25 mm/min.

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Surface morphology evaluation of hardened HSLA steel using cryogenic-treated brass wire in WEDM process

The International Journal of Advanced Manufacturing Technology ◽

10.1007/s00170-019-04301-0 ◽

2019 ◽

Vol 104 (9-12) ◽

pp. 4445-4455 ◽

Cited By ~ 7

Author(s):

Waseem Tahir ◽

Mirza Jahanzaib ◽

Wasim Ahmad ◽

Salman Hussain

Keyword(s):

Surface Morphology ◽

Hsla Steel ◽

Wedm Process ◽

Brass Wire

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A brass wire electric discharge machining variable optimization of aluminium–nano alumina composite

Materials Today Proceedings ◽

10.1016/j.matpr.2019.11.252 ◽

2020 ◽

Vol 27 ◽

pp. 702-706

Author(s):

K. Rajkumar ◽

C. Balasubramaniyan ◽

K.M. Nambiraj ◽

M. Rajesh

Keyword(s):

Electric Discharge ◽

Electric Discharge Machining ◽

Nano Alumina ◽

Alumina Composite ◽

Wire Electric Discharge Machining ◽

Brass Wire

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Multi-objective optimization of WEDM using cold treated brass wire for HSLA hardened steel

Journal of the Brazilian Society of Mechanical Sciences and Engineering ◽

10.1007/s40430-019-2028-9 ◽

2019 ◽

Vol 41 (11) ◽

Cited By ~ 2

Author(s):

Waseem Tahir ◽

Mirza Jahanzaib

Keyword(s):

Hardened Steel ◽

Multi Objective Optimization ◽

Multi Objective ◽

Brass Wire

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EFFECT OF ELECTRODE MATERIAL ON CUT QUALITIES OF SHAPE MEMORY ALLOY DURING WEDM: A COMPARATIVE STUDY

Surface Review and Letters ◽

10.1142/s0218625x19501361 ◽

2019 ◽

Vol 27 (04) ◽

pp. 1950136

Author(s):

HIMADRI MAJUMDER ◽

KALIPADA MAITY

Keyword(s):

Micro Hardness ◽

Process Variables ◽

Machining Time ◽

Five Factors ◽

Series Of Experiments ◽

Pulse On Time ◽

Wedm Process ◽

Different Levels ◽

Fesem Micrographs ◽

Brass Wire

This paper compares some of the vigorous machinability characteristics of SMA-Nitinol during WEDM process using uncoated and zinc coated brass wire electrodes. A series of experiments were regulated based on Taguchi’s L[Formula: see text] orthogonal array with an objective of unveiling the benefits of using coated brass wire electrodes in comparison to uncoated counterparts. Five factors, namely pulse-on time ([Formula: see text]), discharge current ([Formula: see text]), wire tension (WT), wire speed (WS) and flushing pressure (FP), were considered, each at three different levels to scrutinize four responses, viz. surface roughness (Ra), kerf width (KW), machining time (MT) and micro-hardness ([Formula: see text]h). It was perceived that zinc-coated brass wire was more preferable to get favorable responses like Ra, KW and [Formula: see text]h when compared with brass wire counterparts. FESEM micrographs also revealed that micro and large cracks, wide craters, recast layer were more prominent on the WEDMed surface of brass wire compared to zinc-coated brass wire. Use of zinc-coated brass wire electrode significantly improves the machinability of the selected work material within the specified range of process variables.

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XXI. Description of a hydropneumatic baroscope

Philosophical Transactions of the Royal Society of London ◽

10.1098/rstl.1839.0023 ◽

1839 ◽

Vol 129 ◽

pp. 425-431

Keyword(s):

Thin Sheet ◽

Simple Calculation ◽

The Body ◽

The Other ◽

Floating Body ◽

Convex Side ◽

The Difference ◽

Increased Pressure ◽

Brass Wire

The principle on which the instrument I am about to describe is constructed, is, that the volume of a given quantity of air under a constant temperature, is inversely as the pressure to which it is subjected ; and the means I employ to estimate the change of volume which that quantity of air undergoes, by being subjected to differences of pressure caused by a change of elevation, are the determination of the difference of weight which a floating body is capable of sustaining in both situations. Thus, if a vessel containing a quantity of air and water be floated in water, and there be a communication between the water in the floating body and that in which it floats, it will follow, that when such an apparatus is subjected to diminished pressure, the air within the float will dilate, and cause a volume of water equal in amount to the dilatation of the air to be driven from the float; and the difference of weight which the floating body will sustain, will be the exact weight of the water expelled : if such an apparatus is subjected to an increased pressure, the air within it will contract, and consequently a quantity of water, from that in which it floats, will enter the float, and the diminished weight it is capable of sustaining will be the weight of the water which has entered the float, in consequence of the diminution of the volume of the air. It is by such means, with the instrument immediately to be described, and by the help of a very simple calculation, that I propose to determine the difference of level between any two places. Plate X. fig. 1. represents the floating part, made of thin sheet brass, the body of which ( a ), in form the frustum of a cone, is nine inches long, two inches in diameter at one end, and one inch at the other, and capable of containing about fourteen cubic inches. In the centre of the widest end, a small stud of brass ( b ) is hard soldered, into which a brass wire ( c ) is screwed, an inch and three-eighths long, and about one twenty-fifth or one thirtieth of an inch in diameter : the other end of the wire is screwed into a brass stud in the middle of the convex side of a shallow cup ( d ), made also of brass, and as light as possible, so that it will retain its shape, and be capable of sustaining a weight of about eight hundred or one thousand grains.

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