An Experimental Study on Brazing of Diamonds onto Thin Steel Wires

2010 ◽  
Vol 443 ◽  
pp. 537-542 ◽  
Author(s):  
Guo Qing Zhang ◽  
Hui Huang ◽  
Xi Peng Xu
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Experimental Investigation ◽  
Cross Section ◽  
High Temperatures ◽  
Brittle Materials ◽  
The Body ◽  
Natural Stone ◽  
Steel Wires ◽  
Thin Steel

An experimental investigation was carried out to braze diamond abrasives onto thin steel wires, in which case the brazing was conducted in the vacuum and under high temperatures by using a nickel-based powder as brazing alloy. The morphologies and microstructures of the brazed wires were observed and the comprehensive mechanical properties of the brazed wires were tested. The brazed wires were also used to cut such brittle materials as ceramics, glass, and natural stone. It is shown that a typical phenomenon of brazing alloy’s climbing around the diamond grains was observed in brazing the wires. Through observing the cross-section of brazed wires, it is observed that there is a good bonding between the brazing alloy and the body of steel wires. The crystal grains of the steel wires grew significantly after brazing. Through observing the morphologies of the diamond wires and the surfaces of four workpiece materials, few diamond pull-outs were found on the wires and the kerfs on the workpiece materials were basically flat.

scholarly journals Experimental study on LBL beams

2019 ◽  
Vol 275 ◽  
pp. 01026
Author(s):  
Chenjie Zhao ◽  
Xiaohong Xiong ◽  
Zhenhua Xiong ◽  
Kangwen Wu ◽  
Zhen Cao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Elastic Modulus ◽  
Standard Deviation ◽  
Cross Section ◽  
Beam Theory ◽  
Bending Moment ◽  
Modulus Of Rupture ◽  
Loading Process ◽  
The Mean

Six specimens were made and tested to study the mechanical properties of LBL beams. The mean ultimate loading value is 68.39 MPa with a standard deviation of 6.37 MPa, giving a characteristic strength (expected to be exceeded by 95% of specimens) of 57.91 MPa, and the mean ultimate deflection is 53.3 mm with a standard deviation of 5.5 mm, giving the characteristic elastic modulus of 44.3 mm. The mean ultimate bending moment is 20.18 kN.m with a standard deviation of 1.88 kN.m, giving the characteristic elastic modulus of 17.08 kN.m. The mean elastic modulus is 9688 MPa with a standard deviation of 1765 MPa, giving the characteristic elastic modulus of 6785 MPa, and the mean modulus of rupture is 93.3 MPa with a standard deviation of 8.6 MPa, giving the characteristic elastic modulus of 79.2 MPa. The strain across the cross-section for all LBL beams is basically linear throughout the loading process, following standard beam theory.

Experimental Study on Welding Process of TC4 Titanium Alloy with Different Welding Wires

2021 ◽  
Vol 1035 ◽  
pp. 57-62
Author(s):  
Guo Qiang Shang ◽  
Li Ping Li ◽  
Xin Nan Wang
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Tensile Strength ◽  
Titanium Alloy ◽  
Cross Section ◽  
Welding Process ◽  
Alloy Wire ◽  
Tc4 Titanium Alloy ◽  
Weld Area ◽  
Evolution Of Microstructure

In present study, the effects of different welding wires on the evolution of microstructure and mechanical properties of TC4 titanium alloy test plates were studied. The results show that the test plates welded by TA20 titanium alloy wire, TC3 titanium alloy wire and TC4 titanium alloy wire are well formed, no defects are found in the cross section of the weld. The microstructures of these test plates are similar, and needle-like martensite exists in the weld area. In comparison, this is little obvious difference in tensile strength among these test plates welded by different welding wires, while the plates welded by TC4 titanium alloy has better elongation, contraction of aera, impact toughness and better balance of strength and toughness.

An Experimental Study on Machinability of Austempered Ductile Irons During Dry Turning by Ceramic Cutting Tools

2012 ◽  
Author(s):  
Xuhong Guo ◽  
Dongdong Wan
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Experimental Investigation ◽  
Ductile Iron ◽  
Cutting Forces ◽  
Cutting Tools ◽  
High Carbon ◽  
Transformation Induced Plasticity ◽  
Secondary Shear Zone ◽  
Scanning Electron

Experimental investigation on the dry-turnned machinability of austempered ductile iron (ADI) samples using CC650 ceramic cutting tools were carried out in this paper, in which ADI samples are isothermally quenched at 300°C, 350°C, 400°C (hereafter referred as ADI300, ADI350, ADI400, respectively), chip morphologies were also characterized using scanning electron microscope (SEM).Results showed that they own different machinabilities based on the analysis of cutting forces and chip characteristics, strongly implying that ADI350 sample exhibits a relatively improved machinability while its mechanical properties are excellent. However, the cutting force of ADI400 is largest due to its lowest strength, hardness and toughness. The chips of ductile iron (DI) are continuous, while the chips of ADI present segmented and less coiled. The shear localization in the primary and secondary shear zone of ADI chips are correlated with the cutting forces and the wear rate of cutting tools. High carbon austenite transform into marten site due to transformation induced plasticity (TRIP) mechanism during the machining operation lead to an increase in cutting forces and a decrease of machinability.

The Mechanical Properties of Mudstone at High Temperatures: an Experimental Study

2013 ◽  
Vol 47 (4) ◽  
pp. 1479-1484 ◽  
Author(s):  
Lianying Zhang ◽  
Xianbiao Mao ◽  
Ruixue Liu ◽  
Xiaoqian Guo ◽  
Dan Ma
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
High Temperatures

Experimental Investigation of Aerial Spray Characteristics

2010 ◽  
Author(s):  
Ali Bagherpour ◽  
Gordon Holloway ◽  
Ian M. McLeod
Keyword(s):  
Experimental Study ◽  
Experimental Investigation ◽  
Cross Section ◽  
Laser Diffraction ◽  
Spray Application ◽  
Droplet Distribution ◽  
Droplet Sizes ◽  
Droplet Trajectory ◽  
Biological Dose ◽  
Doppler Interferometer

An important characteristic of sprays is their statistical distribution of droplet sizes. Knowledge of the droplet distribution is particularly important for pesticide applications because droplet size affects droplet trajectory, probability of contact with foliage, and the biological dose to target pests. This work describes an experimental study of an aerial spray application in a wind tunnel environment at realistic flight speeds (67 m/s) using a full-scale rotary atomizer turning at 8600 rpm. Comparative measurements of water droplet velocity and diameter were made a 3 component Artium Phase Doppler Interferometer (PDI) and a Sympatec Helos Vario Laser Diffraction (LD) instrument. Distance from the atomizer to the measurement cross section was varied to observe the effects of the atomizer wake on the results.

scholarly journals Experimental Study on the Mechanical Properties of FRP Bars by Hybridizing with Steel Wires

Engineering ◽  
2014 ◽  
Vol 06 (07) ◽  
pp. 365-373 ◽  
Author(s):  
Ji-Hyun Hwang ◽  
Dong-Woo Seo ◽  
Ki-Tae Park ◽  
Young-Jun You
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Steel Wires ◽  
Frp Bars

scholarly journals An Experimental Study on the Mechanical Properties of Concrete with High Temperatures and Cooling Conditions

2012 ◽  
Vol 12 (3) ◽  
pp. 323-331 ◽  
Author(s):  
Gyu-Yong Kim ◽  
Yeoun-Woo Kang ◽  
Tae-Gyu Lee ◽  
Gyeong-Cheol Choe ◽  
Min-Ho Yoon
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
High Temperatures ◽  
Cooling Conditions
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