High Definition Single-Wire-Arc-Spray

2000 ◽  
Author(s):  
R.R. Carlson ◽  
J.V.R. Heberlein ◽  
N. Hussary ◽  
K. Shi
Keyword(s):  
Low Power ◽  
Thermal Spray ◽  
Droplet Generation ◽  
Wire Arc Spray ◽  
High Definition ◽  
Single Wire ◽  
Spray Pattern ◽  
Arc Spray ◽  
Future Work ◽  
Metal Droplets

Abstract Wire arc spray is a process for producing coatings and forming structures through the deposition of metal droplets. Wire arc spray has the advantage of low material coast and low power requirements when compared to other thermal spray technologies. This article elaborates on the assumptions made for using single consumable wire geometry, discusses experiments performed to test these assumptions, presents droplet generation results, and addresses required future work. Experiments revealed a critical relationship between wire polarity, wire position, and droplet beam dispersion. The article identifies a critical relationship between wire polarity, wire position, and spray pattern divergence in a single wire arc spray device.

scholarly journals Pengaruh Jarak Penembakan pada Pelapisan 95MXC Terhadap Sifat Kekerasan dan Keausan Material SS 304 dengan metode Twin Wire Arc Spray (TWAS)

ROTASI ◽  
2019 ◽  
Vol 20 (4) ◽  
pp. 202
Author(s):  
Deni Fajar Fitriyana ◽  
Gunawan Dwi Haryadi ◽  
Sulardjaka Sulardjaka ◽  
Norman Iskandar ◽  
Abdi Gilang Amrizal
Keyword(s):  
Thermal Spray ◽  
Spray Coating ◽  
Air Pressure ◽  
Wire Arc Spray ◽  
Arc Spray ◽  
Ss 304

Proses pelapisan pada SS 304 dengan metode thermal spray dapat di pertimbangkan sebagai metode untuk peningkatan ketahan aus. Dalam penelitian ini bertujuan untuk mengetahui pengaruh jarak penembakan pada proses pelapisan SS 304 dengan metode twin wire arc spray coating terhadap peningkatan ketahanan aus dengan material coating 95MXC. Variasi jarak penembakan yang digunakan adalah 100 mm, 200 mm, 300 mm dan 400 mm dengan air pressure 4 bar. Dari hasil penelitian, pada jarak penembakan 100 mm menghasilkan nilai kekerasan 1227 HV, nilai laju keuasan 4,0x10-4 mm3/s, nilai presentase porositas dan unmelt 9,278% dan kekuatan lekat coating sebesar 22,62 MPa. Semakin dekat jarak penembakan, nilai kekerasan yang dihasilkan akan semakin tinggi sehingga nilai laju keausan yang didapatkan menurun. Hal tersebut dikarenakan rendahnya nilai presentase porositas dan unmelt.

scholarly journals The Effect of Process Parameters on Twin Wire Arc Spray Pattern Shape

Coatings ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 115-123 ◽  
Author(s):  
Allison Horner ◽  
Aaron Hall ◽  
James McCloskey
Keyword(s):  
Process Parameters ◽  
Wire Arc Spray ◽  
Spray Pattern ◽  
Arc Spray ◽  
Pattern Shape

scholarly journals Design and optimisation of magnetically-tunable hybrid piezoelectric-triboelectric energy harvester

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Satish Rao Ganapathy ◽  
Hanim Salleh ◽  
Mohammad Khairul Azwan Azhar
Keyword(s):  
Low Power ◽  
Peak Power ◽  
Energy Harvester ◽  
Open Circuit ◽  
Frequency Range ◽  
Design Factor ◽  
Voltage Generation ◽  
Future Work ◽  
Design Factors ◽  
Extension Length

AbstractThe demand for energy harvesting technologies has been increasing over the years that can be attributed to its significance to low power applications. One of the key problems associated with the available vibration-based harvester is the maximum peak power can only be achieved when the device frequency matches the source frequency to generate low usable power. Therefore, in this study, a magnetically-tunable hybrid piezoelectric-triboelectric energy harvester (MT-HPTEH) was designed and optimised. Four key design factors: mass placement, triboelectric surface area, extension length and magnetic stiffness were investigated and optimised. The voltage generation from piezoelectric and triboelectric mechanisms was determined individually to understand the effect of each design factor on the mechanisms. An output power of 659 µW at 180 kΩ at 44 Hz was obtained from the optimised MT-HPTEH with a theoretical–experimental discrepancy of less than 10%. The added magnetically-tunable feature enabled the harvester to work at the desired frequency range with an open circuit voltage between 7.800 and 20.314 V and a frequency range from 38 to 54 Hz. This MT-HPTEH can power at least six wireless sensor networks and can be used for low power applications such as RFID tags. Future work may include designing of energy-saving and sustainable harvester.

Thermal Spray for Corrosion Control: A Competitive Edge for Commercial Shipbuilding

1995 ◽  
Vol 11 (01) ◽  
pp. 53-55
Author(s):  
Frank S. Rogers
Keyword(s):  
Thermal Spray ◽  
Marine Environment ◽  
Thermal Spraying ◽  
Spray Coating ◽  
Cost Effective ◽  
Thermal Spray Coating ◽  
Coating System ◽  
Protection Mechanism ◽  
Arc Spray ◽  
Spray System

Thermal spraying of steel with aluminum to protect it from corrosion is a technology that has been proven to work in the marine environment. The thermal spray coating system includes a paint sealer that is applied over the thermally sprayed aluminum; this extends the service life of the coating, and provides color to the end product. The thermal spray system protects steel both through the principle of isolation (as in painting) and galvanization (as in galvanizing). With this dual protection mechanism, steel is protected from corrosion even when the coating is damaged. The thermal sprayed aluminum coating system has proven to be the most cost-effective corrosion protection system for the marine environment. Until recently, however, the initial cost of application has limited its use for general application. Today a new arc spray technology has reduced the application cost of thermal spraying aluminum to below that of painting. Commercial shipbuilders could use this technology to enhance their market position in the marine industry.

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