Automobile Chassis Frame

Presentation on.

Team Members

Arun.M.Angadi BE,Automobile

Blue Print of Presentation1.Brief Introduction on topic• Definition• Types• Functions

2.Design Details• Design Information • Material used• Manufacturing Method

3. Field Visit• Industry Details• Manufacturing unit • Type of Manufacturing• Production Details

IntroductionDefinition;• Frame is a under carriage or

structure that supports the engine and cab(body)of the automobile.

• It is made up of long two members called side members riveted together with the help of number of cross members.

Dig of Automobile chassis Frame

Front cross member

X-Member

Side Member

Functions of chassis Frame

• To carry load of the passengers or goods carried in the body.

• To support the load of the body, engine, gear box etc.,

• To withstand the forces caused due to the sudden braking or acceleration

• To withstand the stresses caused due to the bad road condition.

• To withstand centrifugal force while cornering

Chassis Frame of Jeep

Types of Automobile chassis framesThere are three types of frames:1.Conventional frame: It has two long side members and 5 to

6 cross members joined together with the help of rivets and bolts.

Frame Sections used in this type of frame;

a. Channel Section - Good resistance to bending

b. Tabular Section - Good resistance to Torsion

c. Box Section - Good resistance to both bending and Torsion

Uses: In Buses ,Trucks , Vans etc Cont……….

Conventional Frame

2.Integral type of frame• There is no frame and all the

assembly units are attached to the body

• All the functions of the frame carried out by the body itself.

Uses; In all Modern Cars,

3.Semi-Integral Frame• In some vehicles half frame is

fixed in the front end on which engine gear box and front suspension is mounted.

• It has the advantage when the vehicle is met with accident the front frame can be taken easily to replace the damaged chassis frame.

Uses; Tractors , Fiat Cars

Inte

gral

Fram

e

Manufacturing of chassis frame

Detail Procedure Material Details Design Details Manufacturing

process Inspection

Material DetailsMaterial selection of frame depends on: Type of Vehicle(Heavy , Light) Chassis Design (Engine Components location) Manufacturing Company

Recommended Materials: Cast Iron (for Heavy Vehicles) HSS ,Steel (Medium , Foreign Vehicles) Aluminum Alloys (Light Vehicles)

Design DetailsLoad Analysis:Various loads acting on the frame are;

Short duration Load - While crossing a broken patch.

Momentary duration Load - While taking a curve.

Impact Loads - Due to the collision of the vehicle.

Inertia Load - While applying brakes.

Static Loads - Loads due to chassis parts.

Over Loads - Beyond Design capacity.

Acting Loads

Frame

Manufacturing Process

o Drawing Projection o Cutting o Bendingo Welding o Finishing & Inspection

1. Drawing Projection

• Drawing is acquired from design department• Marking is done according to design • Allowances will be provided• Further process will be carried out

Equipments Used Design SoftwareOther tools used in Design Department

2.Cutting

• It is process after drawing projection• Cutting process is done according to marking • Side members of frame are got by cutting the long

beam sections from a raw metal

Equipments Used General cutting MachinesSpecialized cutting MachinesCNC Cutting MachinesLAZER Cutting Machines

3.Bending

• Bending process is carried out after cutting process• Bending is done according to the angle specified.• In frame, bending is done while fitment of cross

members.

Equipments Used General bending MachinesSpecialized bending MachinesCNC bending Machines

Field Visit

M.M Industrial controls private ltd

Industrial area ,Garag Road Dharwad

Visit at;

Visit on; 31/10/2011

Guided By; M.Suresh

Engineer M.M Industries

Industry Details

Organization name :M.M Industries

Location : Garag, Industrial Area

Type : Manufacturing & Fabrication

Headed by :M.M Industrial controls private ltd

Components Manufactured

Engine Cover

Earth Movers Cabin

Fuel Tanks

Silencer

Engine Cover

Manufacturing Details

Machines installed in Industry

CNC Laser Cutting Machine(Traumatic L 3020)

CNC Sheet Metal Cutting Machine

CNC Robot Welding Machine

Plasma Cutting Machine

Painting Section

High pressurized Spray Painting

Chemical cleaning

Laser Cutting Machine

Application: Metal cutting with High Accuracy

Robot Welding Machine

Application: Welding is done with high Accuracy & less time

Bending Machines

Application: Bending is done any angle with accurate Dimensions

Reference…….Websites:

Wikipedia.com

Autopictures.com

Ask.com

Reference Books:

Automobile engineering – R.B.Gupta

Manufacturing procees – R.K.Jain