11.1 Describe the differences between expendable
and permanent molds.
ame the important factors in selecting sand for
11.3 What are the major types of sand molds? What
are their characteristics?
11.4 List important c
FACULTY OF ENGINEERING AND ARCHITECTURE
Course Code-Name ME 364 MANUFACTURING TECHNIQUES Course Schedule Instructors Name Phone E-mail Office Hours Assistants Name Phone E-mail Manufacturing Engineering and
Fundamentals of Machining
Common Machining Operations
Figure 21.1 Some examples of common machining operations.
The Turning Operation
Figure 21.2 Schematic illustration of the turning operation showing various features.
Sheet-Metal Forming Processes
Figure 16.1 Examples of sheet-metal parts. (a) Die-formed and cut stamped parts. (b) Parts produced by spinning.
Characteristics of Sheet-Metal Forming Processes
Shearing with a Punc
Extrusion and Drawing of Metals
A cylindirical billet is forced through a die.
Figure 15.1 Schematic illustration of the direct-extrusion process.
Extrusions and Products Made from Extrusions
Figure 15.2 Extrusions and exam
Parts to be made
Forging of Metals
Pre-shaped part for forging Shape after forging Excess material trimmed
Figure 14.1 (a) Schematic illustration of the steps involved in forging a knife. (b) Landing-gear co
Rolling of Metals
FORMING and SHAPING
FORMING: Changing the shape of existing solid body (called workpiece, stock, blank). Starting with a shape of a plate, bar, rod, wire etc. rolling, forging, extrusion, etc. SHAPING: Molding or casting of
Metal Casting: Design, Materials, and Economics
General Design Rules for Casting
Design the part so that the shape is cast easily. Select a casting process and material suitable for the part, size, mechanical properties, etc. Locate the part
METAL CASTING PROCESSES
Classification of casting processes are related to:
1. Mold materials, 2. Molding processes, 3. Methods of feeding the mold with molten material.
Expendable (non-permanent) Molds
Polymers: Structure, General Properties and Applications
Plastics and Polymers
Plastic: Natural organic or synthetic organic materials, capable of being molded, shaped, formed, machined, cast and joined into various shapes with ease. Requires
Mechanical Behavior, Testing, and Manufacturing Properties of Materials
Relative Mechanical Properties of Materials
Tensile-test Specimen and Machine
P Ao l lo Engineering Strain, e = lo Engineering Stess, = Modulus of Elasticity, E = P A l True
Exam #2 (April 28, 2008)
Mechanical Engineering Department
ME 364 MANUFACTURING TECHNIQUES
.1 SPRING Semester
CLOSED BOOK, CLOSED NOTES
Metalworking processes are clasied, according to proces