production scheduling technique
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Presentation on“Production Scheduling
Technique in a car manufacturing industry”
Date – 8th sept. 2011 Venue – DM college of commerce
By Group (f)Lienminsang Kaihmang
Geetanjali Haobijam
Buangi
Presentation Structure
Definition Raw materials
Design Manufacturing technique
Paint Mate
Conclusion
Production - The creation
of goods using land, labor,
capital, entrepreneurship
and knowledge .
Production scheduling technique - It is the technique used in allocation of resources and the sequencing of tasks to produce goods and services. Production scheduling specifies the time each job starts and completes on each machine, as well as any additional resources needed.
Manufacturing industry refers to any business that transforms raw materials into finished or semi-finished goods using machines, tools and labor.
Automotive industry
Ecology Mobility
Economy
6
Main raw materials used in car body
Weight reduction: ~30%
Additional part costs: < 5,0 €/kg
Highlights:• Mg-Strut tower (die cast)• Mg-Roof• Hot formed steel door aperture• FR plastic roof cross beam• FR plastic rear floor• Al-Casting rear longitudinal• Polymer reinforced seat
cross-member
Material Mix:Steel parts weight: approx. 50 %Al parts weight: approx. 35 %Mg parts weight: approx. 8 %Plastic parts weight: approx. 7 %
High strength steel-Hot formed steel
Aluminium sheetAluminium castAluminum extrusion-
Mg sheet-
Mg diecFibre reinforced plastic
7
Main Challenge in body designMulti-Material Concepts
Advanced Composites
(FRP)
Steel Spaceframe
MultiMaterialConcept
Composites
Advanced Steel body
Coil-coatedshell
Steel thin wall casting
High strength Steels
Al-Spaceframe
SteelUnibody
Stainless Steel Spaceframe
Aff
ord
abili
ty o
f w
eig
ht
red
uct
ion
Design
Materials Processes
Approach
AdvancedLM-Spaceframe
DESIGN• Introduction of new models
• Idea for new models
• Pre design (drawing)
• Reviewing the Models by Aerodynamic engineers
• Beginning of manufacturing
The Manufacturing technique
Final phase in the process of manufacturing an automobile. The components supplied by more than 4,000 outside
suppliers. Materials are brought together for assembly, usually by truck
or railroad. Parts for chassis are delivered to one area while those that
will comprise the body are unloaded at another.
Chassis Firstly constructed from the ground up (and out), ie The
frame forms the base on which the body rests. The frame is placed on the assembly line. From here the automobile frame moves to component
assembly areas
Heavy component parts. Robots implemented rather than
humans. Robots weld the floor pan pieces
together Assist workers
Robots at Work in Car Assembly
Paint The shell of the vehicle passes through a
brightly lit white room Inspectors using cloths soaked in hi-light oil. This oil allows inspectors to see any defects
in the sheet metal body panels. the assembly conveyor carries it through a
cleaning station. A drying booth and then through an
undercoat dip—an electrostatically charged bath of undercoat paint (called the E-coat)
After the E-coat bath, the shell is again dried in a booth.
Spray-painted by robots that have been programmed.
Covered with a base coat of color paint and a clear top coat.
The conveyor transfers the bodies through baking ovens.
Where the paint is cured at temperatures exceeding 275 degrees Fahrenheit (135 degrees Celsius).
Robots at Work in painting
Mate The chassis assembly conveyor and the body shell
conveyor meet at this stage Robotically lifted from its conveyor fixtures and placed
onto the car frame. Bolt the car body to the frame. Proceeds down the line to receive final trim
components, battery, tires, anti-freeze, and gasoline. The vehicle can now be started. From here it is driven to a checkpoint off the line,
usually located near the end of the line. Analyze and repair all problems. Given a price label and driven to a staging lot.
ConclusionThe growth of automobile use and the increasing resistance to road building have made our highway systems both congested and obsolete. But new electronic vehicle technologies that permit cars to navigate around the congestion and even drive themselves may soon become possible. Turning over the operation of our automobiles to computers would mean they would gather information from the roadway about congestion and find the fastest route to their instructed destination, thus making better use of limited highway space. The advent of the electric car will come because of a rare convergence of circumstance and ability. Growing intolerance for pollution combined with extraordinary technological advancements will change the global transportation paradigm that will carry us into the future generation.
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