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Online since: July 2014
Authors: Jozef Jurko, Anton Panda, Marcel Behún
Although the cost of the cutting tool makes up only part of the total cost for producing one component piece (10 % to 15 %), they have a significant impact particularly on the following: cutting process TW, machine stand time, number of required operations, period for which the components must stay within the company and number of cutting tools.
Have identified areas consist of a continuous plastically deformed microstructure and the depth below the machined surface, which was localized plastic deformation in the austenite grains isolated. 3.
Online since: January 2007
Authors: H. Yamaguchi, Takeo Shinmura, T. Sato, T. Okazaki
We previously reported that the internal surface of SUS304 stainless steel tubes were finished with MRF-based slurry that included WA abrasives, and that the finished surface was smoother than a surface finished with the usual grain type of magnetic abrasives [4].
As the size of the diamond abrasives diminishes, the number of the diamond abrasives increases because the diamond abrasives are included at an abrasive/liquid ratio in MRF-based slurry.
Accordingly, there is not much difference in the numbers of diamond abrasives cutting the surface even given varying sizes of the diamond abrasives.
Online since: January 2005
Authors: Shuichi Miyazaki, Yusuke Fukui, Kenji Wakashima, Hideki Hosoda, Tomonari Inamura
In order to evaluate pseudoelasticity, a cyclic loading and unloading tensile test was selected where the applied strain increased by 2% per cycle with increasing the number of loading-unloading cycles. 0.2% flow stress (σ0.2) was employed as yield stress (or stress for inducing martensite or stress for reorientation of martensite variants).
The grain size of parent β phase was hardly determined because of the dense α" martensite plates.
Since the strength must be related with solution hardening by ternary additions, the lattice mismatch εlattic by substituting ternary atoms for the titanium atoms are calculated and listed in Table 1 using Goldschmidt radii: εlattice = (rternary/rTi -1)x100 (%), where rT and rternary are Goldschmidt radii of Ti (0.147nm) and a ternary element, respectively, with the coordination number of 12.
Online since: May 2012
Authors: Azlin M. Biaggi-Labiosa, Jennifer C. Xu, Benjamin J. Ward, Jose M. Gonzalez III, Dorothy Lukco, Peter S. Lampard, Michael A. Artale, Christopher L. Hampton, Gary W. Hunter, Liang Yu Chen
A number of samples with different contact pads were investigated.
These phenomena were observed on a number of sensors with different contact pads, such as Au/Ti, Pt/Ti, and Pd/PdOx.
The PdOx layer (~100Å) did not provide a sufficient barrier for the platinum; the Pt diffuses through the PdOx grain boundaries and forms silicides causing a rough surface (Fig. 5b).
Online since: July 2011
Authors: Xiu Jian Chou, Ya Ting Zhang, Wen Ping Geng, Tao Guo, Ying Tian, Ji Jun Xiong
Firstly, according to the predetermined number, lead acetate trihydrate and acetic acid were mixed in a ratio which was distilled at 110℃ for 30 min to remove water.
As the film thickness increased, the number and location of the peak did not change, but Raman peak became sharply and more and more obvious, strength is increasing, indicating that crystallization is getting better.
With the increase of film thickness, the remanent polarization increased from 19.7 to 37.7μC/cm2, but coercive field decreased from 72.42 to 41.2kV/cm.This is because that with the increase of the spin coating times, the film heat treatment time became longer, resulting in larger grain size and better ferroelectric performance.
Online since: May 2012
Authors: Dong Wang, Kai Huang, Shu Xia Yu, Xiang Wang, Ya Juan Yu
The grain acreage of the watershed was 459600 mu and the yield per mu was 320 kg, the oil plants acreage was 20800 mu and the yield per mu was 133.3 kg.
(1) Where Loadl-p represents overall Livestock and poultry load, Numl-p_i represents the number of Livestock and poultry i; Cofl-p_i represents the discharge coefficient of the type i of livestock and poultry.
(3) Where Loadhab_i represents overall rural residents living pollution load, Numhab_i represents the number of residents, Cofhab_i represents the pollution discharging coefficient of the type i of residents.
Online since: May 2011
Authors: Li Qun Wei, Yan Hui Guo
It can be seen that as the reheating temperature decreases, the hardness and strength increases but the elongation changes little, which indicates that rolling with cooling is favorite for refining grains and improving the mechanical properties of products.
Acknowledgement: This project is supported by Shanghai Metallurgical Technology and Equipment Detection Service Platform(Project Number: 09DZ2292800) and Shanghai Leading Academic Discipline Project( Project Number: J51504) References [1] Sven-Erik,Lundbeng.
Online since: July 2013
Authors: Chen Jing Lu, Shu Xia Ren, Jian Lei Wang, Gang Yu
The crystal nucleus appeared on the substrate grain surface, when the system reached supersaturation state.
The different producing conditions have a great impact on the number and the morphology of fibers.
With increasing of the aluminum content, the number of fibers in the sample is in increments, and the developed gradually increased.
Online since: September 2016
Authors: Chimmalagi Marulaswami, Thangiah Selvaraj, B. Singaravel
The cutting tool material used is Chemical Vapour Deposition (CVD) multi layer coating (TiN/TiCN/AL2O3) of fine grained tungsten carbide 6% cobalt substrate with ISO geometry of CNMG 120404.
Taguchi orthogonal array is used to study the effect of process parameters on performance characteristics with minimum number of experiments [13].
Generally, cutting speed can produce dimensional accuracy errors by number of ways, such as by elastic deformation of the work piece due to cutting force, tool wear, thermal distortion, Built-up edge (BUE) formation and radial spindle error.
Online since: February 2019
Authors: Irina Sergeevna Pyshkina, Georgiy Victorovich Martyashin, K.V. Zhegera
The dry mixes are modified fine-grained building material, which includes mineral binders (cement, lime, gypsum, redispersion polymer compositions), fillers with the optimal granulometry and a certain fractional composition, as well as the necessary chemical modifying additives [9-12].
Table 2 – Indicators for calculating the cost of adhesive dry mix Index Index value Number of workers 7 human Number of shifts 2 Duration of shift 8 hour Machine capacity 8000 [t/year] Power capacity 60 [kW/hour] Adhesive, made on the basis of the developed formulation of a adhesive dry mix with the use of an supplement based on amorphous aluminosilicates, is tested in laboratory and production conditions.
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