- Tuesday, March 24, 2009
- Published at:Not Found
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- Design and Fabrication of a CNC Flame Cutting Machine
- Design and Fabrication of a Model for a Pneu-Automatic Soap Cutting and Stamping Line
- Design and Fabrication of a Hydraulic Deep Drawing Machine
- Materials Selection in Mechanical Design
- Computer Aided Production Planning in Garment Industry
- Computer Aided Process Planning in Sand Casting
- Infra Structure Requirements for SW Collection Systems in the Palestinian Housing
- Computer Aided Process Planning in Turning Operations
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- Tuesday, March 24, 2009
- Published at:Not Found
- This paper presents the work implemented in designing, constructing and operating a pseudo continuous automatic drilling machine in which the drilling head acts as two degrees of freedom manipulator. The manipulator carries out a complex planer movement to drill parts being transported by a continuously moving conveyor belt. The produced machine works as single station automated cell that drills single-model wooden parts. The cell is currently utilized in the Production Processes Lab of the Industrial Engineering Department at An-Najah National University. The experience gained in designing and constructing such a Mechatronics system was found to be successful in terms of obtaining a properly working automated cell, as well as enhancing the students’ abilities to understand the concepts of design and construction of an automatic machine in particular and Mechatronics systems in general.
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- Tuesday, March 24, 2009
- Published at:Not Found
- In this paper, using screw theory, complete descriptions for the relative motion of a pair of spatial gears, whose axes (shafts) may simultaneously rotate and translate, are given. These descriptions are then used to derive the point coordinates of the pitch surfaces corresponding to some practical shafts layouts and/or shafts input-output relations are also generated and given in the example section.
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- Tuesday, March 24, 2009
- Published at:Not Found
- This paper presents the results gained through the Energy Conservation pilot Project in the Town of Salfeet/Palestine. The project was funded by the UNDP and executed in a framework of the cooperation between An najah national university , the UNDP , and Salfeet Municipality. The project aims mainly to draw the public attention towards the importance of energy conservation in reducing pollution as well as running cost. In fact a major component in the project was the replacement of the incandescent lambs for about 40% of the resident of Salfeet (626 families) the 40-100 Watt Lambs were replaced by 18 Watt Compact Florescent Lambs (CFL), each benefited family was given 3 to 5 CFL free of charge depending on number of persons per family . It is found that the total energy saved because of lamp-replacement in Salfeet is about 5000kWh/month, and the total emission saved of CO2 is about 5792 kg as coal is burned to generate electricity. Furthermore, the project has improved public awareness about energy conse
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- Tuesday, March 24, 2009
- Published at:Not Found
- This paper presents the work implemented in designing, constructing and operating a model of a cheep hydraulic deep during machine (DDM), which is currently utilized in the manufacturing process lab in the Industrial engineering Department (IED) at An Najah National University. The machine is being used in conducting different experiments related to the deep drawing process in general and in investigating the limiting drawing ratio(LDR) in particular.
As known, deep drawing can be defined as a sheet- metal working process in which a punch draws a blank sheet into a die cavity to form cup-shaped or box-like parts. One of the feasibility measures of deep drawing process is the LDR, which is defined as the ratio of the maximum starting blank sheet diameter to punch diameter.
This work was carried out in three stages; the first was the design stage, in which all design calculations of the DDM elements were based on the specifications of the product (cup) to be drawn. The second was construction stag
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