Download or read book Expert System for Designing Gating Systems for Permanent Mold Tilt Pour Casting Process written by Yi-Kang An and published by . This book was released on 1994 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book COMPUTER AIDED DESIGN OF GATING SYSTEM FOR A DIE CASTING DIE written by Dr. Chandan Deep Singh and published by BookRix. This book was released on 2018-02-15 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design of a die-casting die is a critical activity for its manufacturing and further downstream activities. Further, in design of a die-casting die, activities like cavity design, cavity layout and design of gating system are essential components. Design of gating system for a die-casting die is dependent upon a number of parameters which are influenced by part design and die-casting alloy. Gating system design takes much time of the die-casting expert since it requires lot of manual input and a number of iterations to finalize the design. This requires a good knowledge of die-casting process, making this activity completely dependent on the user. In modern day industry lot of CAD/CAM tools are being applied for design, development and manufacturing of a die-casting die. However, dependency on a die-casting expert throughout design and manufacturing of die-casting die makes it a quite lengthy process. Gating system design being one of the major activities in die design also takes much time. Therefore, it would be quite beneficial to automate the activity of the gating system design. This work is about computer aided design of gating system for die-casting die. Proposed system takes CAD file of the die-casting part as input and uses die-casting process knowledge to determine different parameters for the gating system. Designs of the components of the gating system like runner, gate and overflow have been attempted. A feature library has been proposed as a part of this work which together with parametric design of the gating system generates CAD model of the components of the gating system. The system has been tested on a number of industrial parts and results found are quite encouraging. The system would go a long way in bridging the gap between designing and manufacturing of die-casting.

Download or read book Automated system for designing gating system of sand casting written by Dr. Chandan Deep Singh and published by BookRix. This book was released on 2018-01-15 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designing in sand casting is a critical activity for manufacturing. Further, activities like cavity design, cavity layout and design of gating system are essential in design. Design of gating system in sand casting is dependent upon a various parameters. Gating system design requires lot of manual input and a number of iterations to finalize the design. This requires a good knowledge of casting process, making this activity completely dependent on the user. In present day industry, lot of CAD/CAM tools are applied for design, development and manufacturing. However, need of sand casting expert throughout design and manufacturing makes it a quite lengthy process. Gating system design being one of the major activities also takes much time. Therefore, it would be quite beneficial to develop a system for automated generation of gating system. Proposed system takes CAD file of the die casting part as input and uses sand casting process, machine and alloy knowledge to determine different parameters for the gating system. Designs of the components of the gating system like runner, gate and overflow have been attempted. A feature library has been proposed as a part of this work which together with parametric design of the gating system generates CAD model of the components of the gating system. The system would go a long way in bridging the gap between designing and manufacturing of die-casting.

Download or read book The Effect of Gating on Soundness of Al alloy Permanent Mold Castings written by Dinesh Shantilal Patel and published by . This book was released on 1973 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A computer aided approach for gating system design for multi cavity dies written by Rohit Kumar and published by GRIN Verlag. This book was released on 2017-10-06 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2017 in the subject Engineering - Mechanical Engineering, grade: 8, , language: English, abstract: This work presents a system that would help in automatic design of multi-gates for multi-cavities dies. The system is able to automate: (i) the determination of the placement of gate, and (ii) determination of the shape of gate for die-casting parts having simple shapes. The system has to be implemented in GUI of MATLAB 7.10 using the best industry practices and recommendations from NADCA for gating-system design. The proposed system is able to generate parameters of multi-cavity gating-system for parts requiring multi-gates from the part model data. The other information required for working of the system includes material properties, die-casting process parameters and die-casting casting machine parameters which comes under the data initialization process. The parameters of the gating-system which are determined by the system are used for design of gating-system for the multi-cavity dies. This is done by updating the parameters of pre-modeled gating-system features stored as feature library. Chapter 3 , 4 and 5 present the various modules of the system along with its implementation on case-study parts. The results from the case-studies are quite encouraging and are in-line with the best industry practices. The present work describes a novel methodology for computer-aided automatic placement of the gating system for a die-casting part. it uses the parting line information to identify the probable positions for the placement of the gating system. This aspect of die-design has not received due attention of the researchers in the past. Moreover, the automated gating-system design for die-casting parts that require multiple agates in a multi-cavity die has not been attempted. Both these features provide the originality to the present work.

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1994 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metals Abstracts written by and published by . This book was released on 1996 with total page 1622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1995 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gating of Permanent Molds for ALuminum Casting written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes a two-year project, DE-FC07-01ID13983 that concerns the gating of aluminum castings in permanent molds. The main goal of the project is to improve the quality of aluminum castings produced in permanent molds. The approach taken was determine how the vertical type gating systems used for permanent mold castings can be designed to fill the mold cavity with a minimum of damage to the quality of the resulting casting. It is evident that somewhat different systems are preferred for different shapes and sizes of aluminum castings. The main problems caused by improper gating are entrained aluminum oxide films and entrapped gas. The project highlights the characteristic features of gating systems used in permanent mold aluminum foundries and recommends gating procedures designed to avoid common defects. The study also provides direct evidence on the filling pattern and heat flow behavior in permanent mold castings.

Download or read book A Computer Aided Approach for Gating System Design for Multi Cavity Dies written by Rohit Kumar and published by Grin Publishing. This book was released on 2017-10-09 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2017 in the subject Engineering - Mechanical Engineering, grade: 8, language: English, abstract: This work presents a system that would help in automatic design of multi-gates for multi-cavities dies. The system is able to automate: (i) the determination of the placement of gate, and (ii) determination of the shape of gate for die-casting parts having simple shapes. The system has to be implemented in GUI of MATLAB 7.10 using the best industry practices and recommendations from NADCA for gating-system design. The proposed system is able to generate parameters of multi-cavity gating-system for parts requiring multi-gates from the part model data. The other information required for working of the system includes material properties, die-casting process parameters and die-casting casting machine parameters which comes under the data initialization process. The parameters of the gating-system which are determined by the system are used for design of gating-system for the multi-cavity dies. This is done by updating the parameters of pre-modeled gating-system features stored as feature library. Chapter 3, 4 and 5 present the various modules of the system along with its implementation on case-study parts. The results from the case-studies are quite encouraging and are in-line with the best industry practices. The present work describes a novel methodology for computer-aided automatic placement of the gating system for a die-casting part. it uses the parting line information to identify the probable positions for the placement of the gating system. This aspect of die-design has not received due attention of the researchers in the past. Moreover, the automated gating-system design for die-casting parts that require multiple agates in a multi-cavity die has not been attempted. Both these features provide the originality to the present work.

Download or read book Casting An Analytical Approach written by Alexandre Reikher and published by Springer. This book was released on 2014-11-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die Casting: An Analytical Approach will refresh knowledge of the governing laws of the fluid dynamics that have an effect on die cast die and die cast process design. It will be bought by product designers that design die cast parts and die cast die and process engineers and designers.

Download or read book Gating Design and Mold Filling in the Lost Foam Casting Process written by Mickey Dean Lawrence and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Gating and mold filling of castings in the lost foam casting process have been studied to determine the importance of processing parameters and how these parameters can be used to control mold filling. The research in paper 1 describes the statistically significant effects of processing parameters and gating system design for an industry-type hat-shaped pattern on mold filling characteristics such as fill time, horizontal velocities, and vertical velocities. The permeability of the refractory coating is the most important variable. The metallostatic pressure head and the pouring temperature also affected the mold filling characteristics to a smaller degree. A maximum velocity (about 1 in./s.) cannot be exceeded if a sound castings is to be produced. Paper 2 describes how processing parameters might be used to predict and control the mold filling in the lost foam casting process. The research involved four steps. Step 1, which used a pattern for a tube holder for a heat exchanger (the pendant pattern), explored ways to force the pattern to fill faster than the runner and to skew the progressing metal front towards the gates in order to force any foam decomposition products into the gating system. Although some improvements were made, this was only accomplished when a straight plate pattern was substituted for the curved pendant pattern. Step 2 used the information from step 1 and previous work to produce a model which predicted the position of the molten metal front throughout the filling process of a pump housing pattern. It was found that intersections involving sharp direction changes from vertical to horizontal flow have a sizable effect on the velocity of the molten metal front as the pattern fills. The slope of the line, when actual time was plotted versus the expected time, also differed because the actual pattern had a higher density than those used to produce the model. Step 3 explored in more detail the effect that sharp direction changes have on mold filling characteristics in simple plate patterns. The effect of the intersection on the flow of the molten aluminum was confirmed. The change in velocity was measured as a jump in the elapsed time when plotted against the predicted time. Step 4 included the effect of the intersection on the predicted metal front progression in an industry-type pipe pattern casting. The predictions were not confirmed, suggests that the effect of intersections is more complex expected. More research on the effect of direction changes must be performed in order to make a model that accurately predicts mold filling in the lost foam process"--Abstract, leaves iv-v

Download or read book Expert System for Die casting Die Design written by Shunder Chang and published by . This book was released on 1989 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Castings Practice written by John Campbell and published by Elsevier. This book was released on 2004-04-16 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each chapter of Professor Cambell's new book Castings Practice will take a look at one of his 10 rules. It is to be expected that the Rules wil one day be taken as an outline or blueprint for an international specification on the methods for making reliable castings.John Cambell has over two decades of experience in the casting industry and is the author of over 40 technical papers and patents. He has become well-known in the foundry industry as the originator of the Cosworth casting process, which is becoming accepted throughout the world as a new production process for the casting of cylinder heads and blocks. He is now Federal Mogul Professor of Casting Technology at the University of Birmingham. * Must-follow rules of castings, from one of the world's leading experts* Companion volume to the renowned book 'Castings' * Accessible and direct, provides essential information for students of metallurgy and foundry professionals alike

Download or read book Complete Casting Handbook Metal Casting Processes Metallurgy Techniques and Design written by John Campbell and published by Butterworth-Heinemann. This book was released on 2017-11-13 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complete Casting Handbook is the result of a long-awaited update, consolidation and expansion of expert John Campbell s market-leading casting books into one essential resource for metallurgists and foundry professionals who design, specify or manufacture metal castings. The first single-volume guide to cover modern principles and processes in such breadth and depth whilst retaining a clear, practical focus, it includes: A logical, two-part structure, breaking the contents down into casting metallurgy and casting manufacture Established, must-have information, such as Campbell s 10 Rules for successful casting manufacture New chapters on filling system design, melting, molding, and controlled solidification techniques, plus extended coverage of a new approach to casting metallurgy Providing in-depth casting knowledge and process know-how, from the noteworthy career of an industry-leading authority, Complete Casting Handbook delivers the expert advice needed to help you make successful and profitable castings. Long-awaited update, consolidation and expansion of expert John Campbell s market-leading casting books into one essential handbook Separated into two parts, casting metallurgy and casting manufacture, with extended coverage of casting alloys and new chapters on filling system design, melting, moulding and controlled solidification techniques to compliment the renowned Campbell 10 Rules Delivers the expert advice that engineers need to make successful and profitable casting decisions "

Download or read book Principles of Metal Casting written by Richard W. Heine and published by McGraw-Hill. This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Principles of Metal Casting Third Edition written by Mahi Sahoo and published by McGraw Hill Professional. This book was released on 2014-06-05 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive metal casting resource--fully updated Written by prominent industry experts, Principles of Metal Casting, Third Edition, addresses the latest advances in the field such as melting, casting processes, sand systems, alloy development, heat treatment, and processing technologies. New chapters cover solidification modeling, casting defects, and zinc and zinc alloys. Detailed photographs, illustrations, tables, and equations are included throughout. Ideal for students and researchers in metallurgy and foundry science as well as foundry industry professionals, this authoritative guide provides all of the information needed to produce premium-quality castings. Comprehensive coverage includes: Patterns Casting processes Solidification of metals and alloys Gating and risering of castings Casting process simulation Aluminum and aluminum alloys Copper and copper alloys Magnesium and magnesium alloys Zinc and zinc alloys Cast irons Steel castings Cleaning and inspection Casting defects