The Selection and Prospect of CAD/CAM System for Diesel Engine Design and Manufacturing

Author(s):  
Gu ze-Tong ◽  
Hu Gang
Author(s):  
Hyung-Jung Kim ◽  
Won-Shik Chu ◽  
Hyuk-Jin Kang ◽  
Sung-Hoon Ahn ◽  
Dong-Soo Kim ◽  
...  

In this paper, web-based design and manufacturing systems are compared with a commercial CAD/CAM system from the point of usability. The web-based systems included in this study were MIcro Machining System (MIMS) and SmartFab. In the MIMS architecture, a 3D model in STL format was read via a web browser, sent to the web server for toolpath planning, and NC codes were generated to be fed back to the designer through the web connection. In the SmartFab system, SolidWorks was used as the design interface with provided modified menus for micro machining. These additional menus were created by SolidWorks API that also provided web-based links to the toolpath planner. In the commercial CAD/CAM case, without using any web connection, SolidWorks or CATIA was used for design, and PowerMill was used as a CAM tool. For each design and manufacturing system, accessibility, user-friendliness, toolpath-reliability, and processing time were compared. Total 91 students tested these systems in undergraduate CAD class, and the feedback showed better performance of the web-based system in accessibility, user-friendliness, and processing time. However, reliability of the web-based system showed necessity of further improvement.


2017 ◽  
Vol 50 (3) ◽  
pp. 206-210 ◽  
Author(s):  
Diana Burdiel ◽  
Carlo Pestelli ◽  
Moreno Almerigogna ◽  
Alan Pettirosso ◽  
Heikki Mikonaho ◽  
...  

The aim of this article is to present a method to predict the dynamic behavior of a new engine design on the basis of a correlation between simulations and measurements of a similar engine.


1989 ◽  
Vol 111 (4) ◽  
pp. 307-314 ◽  
Author(s):  
Z. Gal-Tzur ◽  
M. Shpitalni ◽  
S. Malkin

Design and manufacturing analyses are presented which are the basis for an integrated CAD/CAM system for cams. The design analysis begins with the lift schedule specified either by analytical functions or by discrete data points which are transformed to an analytical form by cubic spline interpolation. The required cam contour and its curvature at each point on the cam periphery are then derived. Machining of the required cam shape is analyzed for NC jig grinding, CNC grinding, and rocker grinding. For NC jig grinding only the geometrical aspects of the process are analyzed, but for CNC and rocker grinding both the geometrical and physical aspects of the process are considered for control of cam geometry and thermal damage. Integration of design and maufacturing tasks in this way allows for manufacturing characteristics and limitations to be taken into account in the design stage.


Author(s):  
Sonika Gogineni ◽  
Jörg Brünnhäußer ◽  
Kai Lindow ◽  
Erik Paul Konietzko ◽  
Rainer Stark ◽  
...  

Author(s):  
Juan Carlos Campos Rubio ◽  
Eduardo Romeiro Filho

This chapter presents the rapid prototyping and manufacturing concepts applied as means to reducing time between jewellery designs and manufacturing process. Different processes on jewellery modelling production are presented. Nowadays, the use of technologies as CAD/CAM - Computer Aided Design and Manufacturing in high production companies are very disseminated. However, the implementation of these resources at the design and manufacturing processes of jewels and fashion accessories, in small and medium size businesses, is still insipient. As reference, is presented the situation observed in small and medium companies located in Minas Gerais, Brazil.


2021 ◽  
Vol 1016 ◽  
pp. 1337-1343
Author(s):  
T. Lachana Dora ◽  
Niranjan Kumar Singh ◽  
Rajkumar Ohdar

There is a growing demand for more efficient and economic manufacturing process to improve product quality, reduce production cost, reduce lead time and increase productivity. The application of computer aided design and manufacturing (CAD/CAM) techniques to forging is becoming increasingly popular as the resulting improvements in yield and productivity. Modeling and simulation have become a major concern in recent and advanced research. In this paper die design for forging of an automobile component “Stub Axle” is presented. In die forging process, complex shape component cannot be made in one stage and therefore, the use of preform die becomes essential. The initial preform design was carried out by conventional method. The simulation has been carried out using software DEFORM-3D. The main goal of this study is to design an optimal preform shape resulting an optimal initial billet selection. Keywords:CAD/CAM, Preform, DEFORM-3D, Simulation, Forging


Author(s):  
C-E Rosgren

Describes the state-of-the-art in medium-speed diesel engine development, with the emphasis on heavy fuel operation. Outlines the requirements for efficient combustion as well as achievements in structural safety of critical components.


2012 ◽  
Vol 591-593 ◽  
pp. 263-266
Author(s):  
Liang Bin Hu ◽  
Bi Wen Li ◽  
Sheng Li ◽  
Yao Bin Hu

In view of the advantages of slotting modification processing and the difficulties in the design and manufacture of Modification Slotting Cutter, development for CAD / CAM system of modification slotting cutter’s design and manufacture for high-speed and heavy-loading gear has the following features:Firstly, the adaptive design of modification slotting cutter is implemented based on different modification target.Secondly,the precise design of modification slotting cutter is implemented by automatic regulating its section line position based on simulation results of the evaluation of the modification. Thirdly, the automatic regulation for fixture system and wire cutting process parameters of modification slotting cutter is implemented based on prediction model of slotting cutter’s pressure angle error, thereby reducing the design and manufacturing difficulty and to improve the precision as well as self-adaptability for modification slotting cutter.


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