Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: February 2009
Authors: Bo Zhang, Wu Yi Chen, Dong Liu
Experimental Study on the Cutting Temperature Using Work-tool
Thermocouple while Machining TC4
ZHANG Bo
1,2,a, CHEN Wu-yi 2,b, LIU Dong 3,c
1Mechanical and Electrical Dept,China University of Mining & Technology (Beijing),Beijing
100083,China;
2
School of Mechanical Engineering and Automation, Beihang University, Beijing, 100083,China;
3
College of Mechanical Electronical and Engineering,North China University of Technology, Beijing,
100041,China;
a
bobo1107@sina.com,
bwychen@buaa.edu.cn,
cliudong@ncut.edu.cn
Keywords: Natural thermocouple; Cutting temperature; Titanium alloy; Calibration;TC4
Abstract.
Introduction Titanium alloys are widely used in aerospace industry due to their excellent mechanical properties.
According to the interspace conductor law of the thermoelectricity, if the junction of two metals is at a uniform temperature, the emf generated is not affected by a third metal, which is at the same temperature, used to make the junction between the first two.
The amplifier factor channel 1 was 320 times, the channel 2, channels 3 is 100 times.
Introduction Titanium alloys are widely used in aerospace industry due to their excellent mechanical properties.
According to the interspace conductor law of the thermoelectricity, if the junction of two metals is at a uniform temperature, the emf generated is not affected by a third metal, which is at the same temperature, used to make the junction between the first two.
The amplifier factor channel 1 was 320 times, the channel 2, channels 3 is 100 times.
Online since: October 2025
Authors: Muhammad Aulia Alfarisi, Andi Baihaky, I. Putu Fadya Rachmawan
These factors must be weighed carefully to optimize the performance of glucose monitoring systems.
C1=ε0Aπa1K1+a2K2 (9) Then without silicon properties the equation should be C1=ε0Aπa1K2+a2K2 (10) Table III.
Factors such as the variability in hand conditions (moist or dry) and the thickness of human tissue in the finger can significantly affect the capacitance readings, making consistent interpretation difficult.
Ilyas et al., Effect of sugar palm nano fibrillated cellulose concentrations on morphological, mechanical and physical properties of biodegradable films based on agro-waste sugar palm (Arenga pinnata (Wurmb.)
Bai, High-resolution probe design for measuring the dielectric properties of human tissues, Biomed.
C1=ε0Aπa1K1+a2K2 (9) Then without silicon properties the equation should be C1=ε0Aπa1K2+a2K2 (10) Table III.
Factors such as the variability in hand conditions (moist or dry) and the thickness of human tissue in the finger can significantly affect the capacitance readings, making consistent interpretation difficult.
Ilyas et al., Effect of sugar palm nano fibrillated cellulose concentrations on morphological, mechanical and physical properties of biodegradable films based on agro-waste sugar palm (Arenga pinnata (Wurmb.)
Bai, High-resolution probe design for measuring the dielectric properties of human tissues, Biomed.
Online since: September 2005
Authors: Stanislaw Strzelecki, Z. Towarek
The life time of rolling bearings of gear is affected by the vibration.
Bearing life is expressed by following equation L = a F C n p e e ⋅ ⋅60 106 (1) where: L - bearing rating life, operating hours, Ce - bearing load rating , (Ce = C ⋅ft ) , N ft - temperature adjustment factor (ft = 1 for the temperature up to 125 0C) Fe - equivalent bearing load ( Fe = F ⋅ fd ), N fd - load adjustment factor (fd = 1 at smooth operation, free from shocks) fd = 1,5 - 3,0 load factor for operation accompanied by shock and vibration p - exponent of the life equation ( p =10/3 for roller bearings) n - bearing speed , rpm ft = 1 for the temperatures up to 1250C a - resultant adjustment factor which reflects the improvements in the calculation of fatigue life (a = a1a2 a3) a1 -life adjustment factor for reliability, a2 - life adjustment factor for special bearing properties, a3 - life adjustment factor for operating conditions.
FA(B) = ⋅X Fri + Y Fai (3) where: X - radial load factor for the bearing, Y - axial load factor for the bearing.
These errors generate additional dynamic forces that result in the excessive mechanical and thermal loads of the rolling bearings of worms.
[2] Handbook of Mechanical Engineer.
Bearing life is expressed by following equation L = a F C n p e e ⋅ ⋅60 106 (1) where: L - bearing rating life, operating hours, Ce - bearing load rating , (Ce = C ⋅ft ) , N ft - temperature adjustment factor (ft = 1 for the temperature up to 125 0C) Fe - equivalent bearing load ( Fe = F ⋅ fd ), N fd - load adjustment factor (fd = 1 at smooth operation, free from shocks) fd = 1,5 - 3,0 load factor for operation accompanied by shock and vibration p - exponent of the life equation ( p =10/3 for roller bearings) n - bearing speed , rpm ft = 1 for the temperatures up to 1250C a - resultant adjustment factor which reflects the improvements in the calculation of fatigue life (a = a1a2 a3) a1 -life adjustment factor for reliability, a2 - life adjustment factor for special bearing properties, a3 - life adjustment factor for operating conditions.
FA(B) = ⋅X Fri + Y Fai (3) where: X - radial load factor for the bearing, Y - axial load factor for the bearing.
These errors generate additional dynamic forces that result in the excessive mechanical and thermal loads of the rolling bearings of worms.
[2] Handbook of Mechanical Engineer.
Online since: August 2013
Authors: M.Y. Ismail, M. Hashim Dahri
To overcome the flaw of the mechanical movement an electronically tunable reflectarray antenna based on non-linear properties of Liquid Crystal materials has been introduced.
Non-linear material properties have been used to develop an algorithm based on Method of Moment, for dynamic phase distribution of three resonant elements.
Liquid crystal materials can be realized as a dynamic phase control strategy in reflectarrays due to their non-linear dielectric properties [4, 5].
Table 1 summarizes the properties of non-linear dielectric materials that are used to design the reflectarray resonant elements.
Therefore a MoM algorithm for dynamic phase range based on non-linear material properties has been established as shown in Eq. 4
Non-linear material properties have been used to develop an algorithm based on Method of Moment, for dynamic phase distribution of three resonant elements.
Liquid crystal materials can be realized as a dynamic phase control strategy in reflectarrays due to their non-linear dielectric properties [4, 5].
Table 1 summarizes the properties of non-linear dielectric materials that are used to design the reflectarray resonant elements.
Therefore a MoM algorithm for dynamic phase range based on non-linear material properties has been established as shown in Eq. 4
Online since: March 2017
Authors: Ronald Allan S. delos Reyes
Slurry suspension homogeneity is a critical factor to obtain the optimum cutting capacity.
These factors combine to reduce the probability of smaller particles to form aggregates that can eventually settle out of the suspension.
This adversely affects the quality and efficiency of the cutting process.
Proceedings of The 3rd International Conference on Advances in Mechanical, Aeronautical and Production Techniques, Institute of Research Engineers and Doctors, pp. 5-8.
The importance of surface hydration and particle shape on the rheological property of silica-based suspensions.
These factors combine to reduce the probability of smaller particles to form aggregates that can eventually settle out of the suspension.
This adversely affects the quality and efficiency of the cutting process.
Proceedings of The 3rd International Conference on Advances in Mechanical, Aeronautical and Production Techniques, Institute of Research Engineers and Doctors, pp. 5-8.
The importance of surface hydration and particle shape on the rheological property of silica-based suspensions.
Online since: April 2011
Authors: Hendi Saryanto, Pudji Untoro, Darwin Sebayang, M.A. Othman, T. Sujitno, Deni S. Khaerudini
It has been reported that nanocrystalline exhibit a variety of previously unavailable properties including surface reactivity [7].
Other technology, surface treatment with ion implantation widely used to modify the oxidation behaviour and surface mechanical properties of metals [8].
It has shown that the commercial ferritic steels still need further modification due to possess the suitable properties required for long-term reliable cell performance.
The higher oxidation rate is believed to be caused by the formation of volatile oxides which can affect by inward diffusion of Ti implantation to the surface of alloy.
The parabolic rate constant of developed specimen at 1173 and 1273 K (Figs. 2a and b) were clearly significant show the different improvement of oxidation kinetics which is up to factor of 10 lower; while at 1373 K (Fig. 2c), it is only as much as factor of 2 lower compared to that as received alloy.
Other technology, surface treatment with ion implantation widely used to modify the oxidation behaviour and surface mechanical properties of metals [8].
It has shown that the commercial ferritic steels still need further modification due to possess the suitable properties required for long-term reliable cell performance.
The higher oxidation rate is believed to be caused by the formation of volatile oxides which can affect by inward diffusion of Ti implantation to the surface of alloy.
The parabolic rate constant of developed specimen at 1173 and 1273 K (Figs. 2a and b) were clearly significant show the different improvement of oxidation kinetics which is up to factor of 10 lower; while at 1373 K (Fig. 2c), it is only as much as factor of 2 lower compared to that as received alloy.
Impact of Rare Earth Addition on Creep Rupture Behavior of 316LN Austenitic Stainless Steel at 700°C
Online since: October 2022
Authors: Ren Xian Yang, Xin Cai, Lei Gang Zheng, Xiao Qiang Hu, Dian Zhong Li
Introduction
316LN austenitic stainless steels are widely used in nuclear industries as important structural materials for their excellent corrosion resistance and high temperature mechanical properties [1, 2].
Experiment Results Effect of RE on Creep Properties.
Wang, Effect of rare earth cerium on the creep properties of modified 9Cr–1Mo heat-resistant steel, Mater.
Sandström, Influence of cerium on the creep properties of the austenitic stainless steel 253MA, High Temp.
Hu, Role of yttrium in the microstructure and mechanical properties of a boron-modified nickel-based superalloy, Scr.
Experiment Results Effect of RE on Creep Properties.
Wang, Effect of rare earth cerium on the creep properties of modified 9Cr–1Mo heat-resistant steel, Mater.
Sandström, Influence of cerium on the creep properties of the austenitic stainless steel 253MA, High Temp.
Hu, Role of yttrium in the microstructure and mechanical properties of a boron-modified nickel-based superalloy, Scr.
Online since: May 2015
Authors: Jian Hua Zhou, Cong Mei Lin, Gui Yu Zeng
Graphene has been widely concerned in all aspects for its excellent properties, considerable works have been reported in the last decade.
Simultaneously, graphene is potential to be used in many fields for these properties, such as transistors, sensors, energy storage, ultra capacitors [2-5].
With a small quantity of GO added, the thermal decomposition of HMX may be affected by the nanostructure and heat transfer property of GO.
Thermal Property.
The TG curves of HMX and GO/HMX are shown in Fig.3, the thermal property data are listed in table 1.
Simultaneously, graphene is potential to be used in many fields for these properties, such as transistors, sensors, energy storage, ultra capacitors [2-5].
With a small quantity of GO added, the thermal decomposition of HMX may be affected by the nanostructure and heat transfer property of GO.
Thermal Property.
The TG curves of HMX and GO/HMX are shown in Fig.3, the thermal property data are listed in table 1.
Online since: November 2013
Authors: Jun Dong, Pei Chi, Hai Feng Bo, Yang Peng, Bei Bei Wang
The behavior of un-strengthened masonry panels that are subjected to in-plane seismic excitation depends on different parameters mainly related to their geometrical and mechanical properties as well as the loading and boundary conditions [11].
Taking these factors into account, an experimental study was carried out to investigate the shear behavior of the strengthened masonry panels using the proposed strengthening method in this paper.
(e) (f) (g) (h) Fig. 2 Dimension and photos of strengthened masonry panels Mechanical properties of material.
The mechanical properties of the bars and steel members are shown in Table 4, respectively.
Mechanical properties of concrete and mortar Material No. of test load block Ultimate load Fu [kN] Compressive strength fc [MPa] Concrete 1 440.78 19.58 2 465.76 20.69 3 482.47 21.56 Mortar 1 41.68 8.30 2 43.56 8.76 3 42.63 8.53 Table 4 Mechanical properties of steel members and rebar Material Thickness t [mm] Diameter d [mm] Yield strength fy [MPa] Ultimate strength fu [MPa] Steel strips 1.5 ― 337.21 424.88 3.0 ― 342.78 433.91 Connection plate 5.0 ― 385.33 485.52 Tie ― 4 388.13 522.16 Longitudinal reinforcement ― 6 540.37 702.12 ― 8 562.46 758.18 Test setup and loading scheme.
Taking these factors into account, an experimental study was carried out to investigate the shear behavior of the strengthened masonry panels using the proposed strengthening method in this paper.
(e) (f) (g) (h) Fig. 2 Dimension and photos of strengthened masonry panels Mechanical properties of material.
The mechanical properties of the bars and steel members are shown in Table 4, respectively.
Mechanical properties of concrete and mortar Material No. of test load block Ultimate load Fu [kN] Compressive strength fc [MPa] Concrete 1 440.78 19.58 2 465.76 20.69 3 482.47 21.56 Mortar 1 41.68 8.30 2 43.56 8.76 3 42.63 8.53 Table 4 Mechanical properties of steel members and rebar Material Thickness t [mm] Diameter d [mm] Yield strength fy [MPa] Ultimate strength fu [MPa] Steel strips 1.5 ― 337.21 424.88 3.0 ― 342.78 433.91 Connection plate 5.0 ― 385.33 485.52 Tie ― 4 388.13 522.16 Longitudinal reinforcement ― 6 540.37 702.12 ― 8 562.46 758.18 Test setup and loading scheme.
Online since: October 2010
Authors: Hong Wang, Hong Xiu Zhu, Rui Qing Jia
Personal emotional factor will lead to bad
monitor, and personal experience and ability limitation will ignore the unsafety behaviors.
One of the main measures for disaster prevention is to control the danger sources and trigged factors, including human behavior, equipment state, and field task arrangement and so on.
For affected entire mining area or greater disasters, such as: in the situation of gas explosion, working-face fire, coal-dust explosion, and the big area water gushing, emergency rescue should be immediately started.
For example, after gas explosion or mine fires, the investigation should be proceeded to avoid the recurrence of explosion: explosive properties and location, spontaneous combustion, fire, the damage of ventilation system and mine laneway, and the concentration of CO, CO2, O2 and other gases in mine atmosphere.
Some interference caused by artificial factors can be eliminated.
One of the main measures for disaster prevention is to control the danger sources and trigged factors, including human behavior, equipment state, and field task arrangement and so on.
For affected entire mining area or greater disasters, such as: in the situation of gas explosion, working-face fire, coal-dust explosion, and the big area water gushing, emergency rescue should be immediately started.
For example, after gas explosion or mine fires, the investigation should be proceeded to avoid the recurrence of explosion: explosive properties and location, spontaneous combustion, fire, the damage of ventilation system and mine laneway, and the concentration of CO, CO2, O2 and other gases in mine atmosphere.
Some interference caused by artificial factors can be eliminated.