Machining Performance Study of a New Palm Oil Based Bio-Product Industrial Wax

2015 ◽  
Vol 754-755 ◽  
pp. 935-938
Author(s):  
Bhuvenesh Rajamony ◽  
A.N.M. Khalil ◽  
Khairul Azwan Ismail

Machining can be performed on virtually all solid materials even though the term commonly applies to the cutting of metals, alloys, plastics and woods. Machining is a mechanical process where excess material from a work piece can be removed by cutting action to produce a part of specified geometrical shape and surface finish. In this research we will analyze and investigate whether there is a possibility to use the palm oil based bio wax material for machining applications. At the moment different ferrous, non-ferrous materials and industrial blue wax have been used for prototype models, training purpose by different industries, educational and training organizations. However the price of such material is very expensive. Hence an attempt is made to substitute these material by the palm oil based bio wax produced in Malaysia. With it, engineers can generate prototype to evaluate even minor design changes without breaking the budget. To the best of researcher’s knowledge, no previous work has been carried out nationally or worldwide on the use of palm oil based bio wax material in the manufacture of a strong industrial wax. This research work gives the approaches taken in this direction.

2021 ◽  
Vol 46 (1) ◽  
pp. 41-47
Author(s):  
G. Meldesh ◽  

The article put attention on the need for a methodological collaboration analysis of the academic and modern types of teaching sculpture in the specialized creative colleges and universities of the Republic of Kazakhstan in the modern educational and aesthetic discourse. The main research problem focuses on identifying and characterizing the most relevant educational theoretical and practical methods that can significantly increase the level of domestic art education in the art of sculpture. The author believes that a comprehensive scientific analysis of the educational potential of the Kazakhstani aesthetic originality of modern sculpture, its history and technical and technological features will give a possibility to understand deeply and see the big picture of the art education role in the general socio-cultural canvas of sovereign Kazakhstan. At the moment, the Kazakhstani art education system is on a peripeteia and it is necessary to clear the choice between academic and contemporary art practices or their harmonious synthesis. This work is devoted to these question’s analysis and the author's research work disclosure.


2020 ◽  
Vol 240 ◽  
pp. 03001
Author(s):  
P.N. Diep ◽  
D.T. Hoai ◽  
P.T. Nhung ◽  
N.T. Phuong ◽  
T.T. Thai ◽  
...  

The research and training team of the Department of Astrophysics (DAP), Vietnam National Space Center, is some twenty years old. Currently, we work in the fields of stellar physics and high-redshift galaxies using mm/sub-mm data observed by world-leading radio interferometers such as ALMA and NOEMA. In this report, we present the research team and its activities and give illustrations of the research work with emphasis on the use of archival data.


Author(s):  
Olga V. Zakharchenko

Preparation of undergraduates and privat-docents for professorship in the late XIX – early XX century is considered on the example of Moscow University through the prism of the biography of a historian and a jurist Sergei Andreevich Kotlyarevsky. The uniqueness of his example lies in the fact that he defended four dissertations: master’s and doctoral dissertations on foreign history and master’s and doctoral dissertations on public law. This demonstrates some individualism of the trajectory showing his professional development and formation as a scientist and a teacher. The research perspective includes the process of young scientists’ formation from the moment of continuing working at the university’s profile department to prepare a dissertation up to obtaining the degree. Attention is paid to socio-political circumstances and conditions affecting the possibility of becoming a professional scientist and teacher. Both formal and special features of the training scientific and teaching staff inherent in a particular scientific community are noted. The professional development of future scientists and teachers of higher education was associated with active preparation for the defense of the master’s exam, the first teaching experience, scientific and research work. The best graduates were left at the departments with the support of leading university professors who saw new forces and future professionals in them. However, the personal contribution of the applicants themselves was important, since they were required to reveal their intellectual potential, pedagogical and research skills. At this, an important aspect was the opportunity to go on foreign business trips, in which not only the material of scientific research was collected, but knowledge was enriched as well, including getting to know the peculiarities of teaching in European countries and their socio-political life. The preparation process was completed with the public defense of the master’s dissertation and awarding a master’s degree. At the same time, the path to the teaching environment began, which required further disclosure of scientific potential and the defense of a doctoral dissertation in order to obtain a professorship.


2021 ◽  
Vol 13 (3) ◽  
pp. 23-36
Author(s):  
Desalegn Wogaso ◽  
Mohammed Hamda

In metal forming, friction has a negative effect on the deformation load & energy requirements, homogeneity of metal flow, quality of formed surfaces, etc.; however, its effect can be reduced through the use of proper lubricants. Mostly, in industrial applications, selection of proper lubricant for specific material is challenging and quantification of magnitude of friction at diework piece interface is essential. Hence, for metallic alloys, a realistic friction factor is needed to be known and used at the diework piece interface for better control of deformation process. Thus, this research, generally, aims at experimental investigation of the friction behavior of aluminum AA4032 alloy and selection of suitable lubricant for its effective processing using ring compression test and finite element (FE) simulations. Meanwhile, the effect of metal surface conditions and different lubricants namely palm oil, grease, emulsion oil and dry conditions on the friction behaviour has been evaluated. A commercial FEM software, DEFORM 3D, is used to analyze the flow of metal, determine the geometry changes of the specimen and generate friction calibration curves. The results revealed that the nature of metal surface and lubricating conditions have significantly affected the metal flow pattern, deformation load requirement, induced effective stress and strain, and geometry of the metal. The friction factor at die-work piece is determined for different lubricating conditions. Among lubricants employed, palm oil is found to be suitable and effective for industrial processing of aluminium AA4032 alloy, specifically for forging. The FE simulation results are in a good agreement with the experimental one.


INTERAZIONI ◽  
2009 ◽  
pp. 47-50
Author(s):  
Andrea Narracci

- In this article the author tells about having discovered the GPMF existence while he was looking for a work methodology to compete with the outbreak of the negative therapeutic reaction of psychotic patients, at the moment of the re-entry in their families. The patients were previously cured with good results in a Therapeutic CommunityFor the author, as probably for every other operator that experiences it, the GPMF symbolizes the result of a long and unconscious research work, at which a meaning can be attributed only subsequently, carried on in both, the external world, by knowledge and learning different therapeutic techniques, and mainly, the internal world, through his own maturation process. A process whose aim is to achieve the awareness of the possibility to deal with psychosis being on the same footing and not, as generally happens, from an hopeless position. Following García Badaracco's suggestions, the author tries to demonstrate that the GPMF is one of the most interesting ways through which the heritage of psychoanalytical and psychotherapeutic knowledge, mainly utilized for the study and the treatment of neurotic patients, may be used with psychotic patients, assuming the use of this knowledge through the psychoanalysis multifamily group experience. Considering that, the GPMF represents the privileged place where learning to deal with and defuse the unbearable mechanisms that produce and maintain psychosis is possible.


2020 ◽  
Vol 299 ◽  
pp. 628-633 ◽  
Author(s):  
S.I. Feoktistov ◽  
Kyaw Zayar Soe

The paper describes a method which has been developed for obtaining the limiting drawing ratio of titanium and aluminum alloys, and determines the moment of failure of the work-piece. This method is based not only on the use of Forming Limit Diagram (FLD) in predicting the failure of the blank, but also the using method of variable parameters of elasticity in determining the stress-strain state in deep drawing process.


2013 ◽  
Vol 65 (4) ◽  
Author(s):  
Law Yong Ng ◽  
Abdul Wahab Mohammad ◽  
Ching Yin Ng ◽  
Nur Hanis Hayati Hairom

In this research work, porous PES membranes were initially pre-heated for certain duration of time and then surface-modified to reject the MgSO4 salt solutions through self-adsorption of polyelectrolytes. From the experimental work, higher membrane salt rejection capability can be obtained when the number of polyelectrolyte bilayers is increased. The images of the cross-sectional morphology of modified and non-modified membranes were obtained using field emission scanning electron microscopy (FESEM). All modified membranes showed relatively lower contact angle values.


2018 ◽  
Vol 7 (4.35) ◽  
pp. 186 ◽  
Author(s):  
W. Safiei ◽  
M.M. Rahman ◽  
S.A. Rusdan

Minimum Quantity Lubricants is a technique in supplying small quantity of lubricant into machining area which also part of green manufacturing approach that receive wide attention globally. The main driven of introducing MQL method was due to negative environmental impact which leads to safety and health issues of conventional coolant among workers especially in tool and mould industries. Besides, based on research findings, the MQL system has the capability for lubricating and cooling both work piece and cutting tool. In order to find the best solution for machining and also to enhance machining performance, first and foremost the MQL parameters must be controlled wisely as it has remarkable effects on lubricant coverage, droplets size and subsequently influence the machining performance. Nozzle angle, nozzle distance and MQL flow rate are the important parameters studied and surface roughness is the response parameter. Therefore, in this study, MQL optimum parameters were explored by minimizing surface roughness in end milling process using Taguchi L9 orthogonal method. Aluminum Alloy 6061-T6 was selected as work piece material. The results show that the best combination of MQL parameters in minimizing surface roughness was obtained at 30mm nozzle distance, 30 degree nozzle angle and 1.98 mL/min MQL flow rate. Hence, based on this optimal condition, three confirmation runs were conducted. The margin error is acceptable which less than 10% and within prediction interval. This results can work as a base line guidance for any experimental that employ MQL system.


2004 ◽  
Vol 28 (5) ◽  
pp. 180-182 ◽  
Author(s):  
Rachel Petrie ◽  
Kay Anderson ◽  
Elizabeth Hare ◽  
Neil Mayfield ◽  
Rebecca Tipper

Aims and MethodThere has been much discussion about the productivity and training value of protected research sessions at specialist registrar (SpR) level. We used questionnaire survey to investigate the research experience of senior psychiatric SpRs and first-year psychiatric consultants in Scotland.ResultsThe survey had an 80% response rate. Two-thirds of respondents were able to take protected research sessions, and a similar proportion had published research work during their higher training. Specific difficulties in conducting research are identified and discussed.Clinical ImplicationsScottish SpRs in psychiatry are usually able to protect research sessions, but experience difficulties with lack of experience, resources and supervision. Almost a third of those near the end of their training have published nothing. It is important to explore options other than research projects to gain relevant research experience.


2015 ◽  
Vol 8 (1) ◽  
pp. 187
Author(s):  
Dewi Tri Wijayati Wardoyo

<p>This research attempts to know if there are no influence or between education and training discipline of work and the satisfaction work simultaneously and partial achievement work against member organization of IGTKI Krembung Distric. The population of this study is all member organization of IGTKI Krembung Distric and sample 98 employees. An instrument data collection is the questionnaire, and data analysis technique available for analysis is linear regression worship of idols with the program statistic spss.</p><p>This research result indicates that the education and training, discipline of work and the satisfaction of work achievement of work affecting employees simultaneously and partial.proven the analysis that shows the education and training that the value of work is 2,444 t-test 0,016 with a sig value so (0,016 &amp;&lt; 0.05), discipline that the value of work is 2,947 t-test 0.004 with a sig value so (0.004 &amp; &lt; 0.05), and the satisfaction of work is the value of t-test 0,012 2,569 with a sig value so (0,012 &amp; &lt; 0.05) that means each variable x impact on the achievement of working.</p><p>But the results obtained by the simultaneous or f-test 7,045 with the significance of 0,000 &amp; &lt; 0.05 so ho rejected ha accepted. So, can be concluded that the results of this research work is education and training, discipline of work and the satisfaction of work achievement of having influence in the work of employees. As we know that the education and training, discipline and satisfaction to improve the quality of work achievement and quality of the company.</p>


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