ie204forming(rolling&forging)
TRANSCRIPT
-
7/28/2019 IE204Forming(Rolling&Forging)
1/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
FORMING AND SHAPING PROCESSESAND EQUIPMENT
-
7/28/2019 IE204Forming(Rolling&Forging)
2/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
CONTENTS
Rolling
Forging
Extrusion and drawingSheet-metal forming
Powder Metallurgy
Forming and shaping plastics andcomposites; Rapid Prototyping
Forming and shaping ceramics and glass
-
7/28/2019 IE204Forming(Rolling&Forging)
3/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
ROLLING
Flat rolling Shape rolling
Rolling is the process of
reducing the thickess orchanging the cross-sectionof a long workpiece bycompressive forces applied
through a set of rolls
-
7/28/2019 IE204Forming(Rolling&Forging)
4/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Flat Rolling
-
7/28/2019 IE204Forming(Rolling&Forging)
5/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Shape Rolling
-
7/28/2019 IE204Forming(Rolling&Forging)
6/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Applications
Straight and long structural shapes
Solid bars with various cross
sections Channels
I-beams
Railroad rails
-
7/28/2019 IE204Forming(Rolling&Forging)
7/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Production of Seamless Tubes and Pipes
Rotary Tube Piercing (The Mannesmann Process)
Hot-working process
Radial compressive forces tensile stress at the center of the bar
Cyclic compressive stresses cavity formation
Diameter of tubes and pipes are reduced by tube rolling
-
7/28/2019 IE204Forming(Rolling&Forging)
8/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
-
7/28/2019 IE204Forming(Rolling&Forging)
9/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Forging
Press or forging hammer
Discrete parts (bolts and
rivets, connecting rods, shafts
for turbines, gears,hand tools,structural components formachinery)
Cold forging (at roomtemperature)
Warm or hot forging (atelevated temperatures
Forging is the name forprocesses whereby the
workpiece is shaped bycompressive forces appliedthrough various dies andtools
-
7/28/2019 IE204Forming(Rolling&Forging)
10/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Open-die forging
-
7/28/2019 IE204Forming(Rolling&Forging)
11/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Impression-die and Closed-die Forging
-
7/28/2019 IE204Forming(Rolling&Forging)
12/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
-
7/28/2019 IE204Forming(Rolling&Forging)
13/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Related forging operations - Heading
-
7/28/2019 IE204Forming(Rolling&Forging)
14/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Piercing
-
7/28/2019 IE204Forming(Rolling&Forging)
15/17
Die Materials
General requirements for die materials:
Strength and toughness at elevated
temperatures Herdenability and ability to harden uniformly Mechanical and thermal shock resistance Wear resistance (abrasive wear resistance)
Common die materials: tool and die steelscontaining chromium, nickel, molybdenum andvanadium
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
-
7/28/2019 IE204Forming(Rolling&Forging)
16/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering
Economics of Forging
-
7/28/2019 IE204Forming(Rolling&Forging)
17/17
IE 204 Manufacturing Processes Dr. Zhal ERDEN
Atlm University / Dept. of Industrial Engineering