1 / 66

Kingdom of Saudi Arabia Ministry of Higher Education Umm Al- Qura University

Kingdom of Saudi Arabia Ministry of Higher Education Umm Al- Qura University College of Engineering and Islamic Architecture Mechanical Engineering Department Sand Molding Arrangement , Design and Production B.sc Project Prepared By :

dahlia
Télécharger la présentation

Kingdom of Saudi Arabia Ministry of Higher Education Umm Al- Qura University

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Kingdom of Saudi Arabia Ministry of Higher Education Umm Al-Qura University College of Engineering and Islamic Architecture Mechanical Engineering Department Sand Molding Arrangement , Design and Production B.sc Project Prepared By : 1-Ahmad Mohammad Tarmom. 2-Naief Ali Al-Malki 3-Abdullah Abdurrahman Al-Faqasi 4-Meshari Eidhah Al-Juaid 5-Faisal Mohammad Bashaikh 6-Assaf Saleh Al-Khathami 7- Ali Ahmad Al-Omari Supervised By : Dr. Ahmed Hassan H

  2. ABSTRACT Casting is a liquidus for process, includes melting the metal, pouring it in a pre-shaped mould and allowing it to solidify. Sand casting process is a metal process in which natural sand, containing a proportion of clay to bind the grains of sand together and water, or a pure silica sand with an artificial binder added to it, is contained in a flask

  3. (the name given to a pair of matching molding boxes) and compressed by hand, or mechanical ramming, around a pattern. In this project a sand molding arrangement was designed and produced to simulate the automatic sand molding machine.

  4. CHAPTER ONE

  5. * Casting is a liquidus for process, includes : melting the metal, pouring it in a pre-shaped mould and allowing it to solidify.

  6. * Sand casting process is a metal casting process in which a natural sand , containing a proportion of clay and water to bind the grains of sand together.

  7. When two flasks are parted, the pattern and the dowels forming the sprue system are removed, a negative mould shape is left in the sand. The molten metal is poured into this cavity.

  8. It can be used to produce complex and huge shapes, such as cast-iron engine blocks and very large propellers for ocean liners. Sand casting can be economical for relatively small production runs, and equipments cost are generally low

  9. 1- The surface finish obtained is largely a function of the materials used in making the mold. 2- Dimensional accuracy is not so good as that of other casting processes.

  10. CHAPTER Two

  11. The objective of automatic molding is to produce accurate parts able to withstand lifting and handling . • Molding Machine enables moulds to be produced at high rates . • The principal feature of molding machine is the use of power operated mechanisms for mould compaction; this mechanization can extend in varying degrees to pattern withdrawal and mould part manipulation

  12. 1- Eliminate labor cost. • 2-Offer high quality casting by improving the application and distribution of forces. • 3-Manipulate the mold in a carefully controlled fashion . • 4-Increase the rate of production

  13. CHAPTER THREE

  14. Sand molding process was a hand process. And it is developed to be an automatic process. • In this project a sand molding arrangement was designed and produced to simulate the automatic sand molding machine

  15. We select pneumatic cylinder with bore D = 10 cm that is available Commercially and to be more efficient , while the stroke is taken L= 10 cm. l

More Related