CEED Que. Papers

CEED all years question papers.

1. CEED 2012
2. CEED 2013
3. CEED 2014
4. CEED 2015
5. CEED 2010
6. CEED 2011
7. CEED 2006
8. CEED 2007
9. CEED 2008
10. CEED 2009

I'll add the solutions of question papers later.

G & M Codes

G & M Codes

G&M Codes make up the most of the contents of the CNC program. The definition of each class of code and specific meanings of the most important codes are covered next.

G-Codes

Codes that begin with G are called preparatory words because they prepare the machine for a certain type of motion. The most common G-codes are shown in Table 5.3 and a complete list and their meaning is included in Appx D - G-M Codes Reference.

	Note: Older controls required G-codes to be written with a leading zero, like G01. Most machines now allow the leading zero to be omitted, as shown in the table below.
Table 5.3: Common G-Codes
Code	Meaning
G0	Rapid motion. Used to position the machine for non-milling moves.
G1	Line motion at a specified feed rate.
G2	Clockwise arc.
G3	Counterclockwise arc.
G4	Dwell.
G28	Return to machine home position.
G40	Cutter Diameter Compensation (CDC) off.
G41	Cutter Diameter Compensation (CDC) left.
G42	Cutter Diameter Compensation (CDC) right.
G43	Tool length offset (TLO).
G54	Fixture Offset #1.
G55	Fixture Offset #2.
G56	Fixture Offset #3.
G57	Fixture Offset #4.
G58	Fixture Offset #5.
G59	Fixture Offset #6.
G80	Cancel drill cycle.
G81	Simple drill cycle.
G82	Simple drill cycle with dwell.
G83	Peck drill cycle.
G84	Tap cycle.
G90	Absolute coordinate programming mode.
G91	Incremental coordinate programming mode.
G98	Drill cycle return to Initial point (R).
G99	Drill cycle return to Reference plane (last Z Height)

Questions on CAD/CAM

All about CAD/CAM

COMPUTER-AIDED DESIGN (CAD) 

AND COMPUTER-AIDED MANUFACTURING (CAM)

Computer-aided design (CAD) and computer-aided manufacturing (CAM) are a pair of often interdependent industrial computer applications that have greatly influenced the chain of processes between the initial design and the final realization of a product. Many would add to this duo a third technology, computer-aided engineering (CAE). Ongoing refinements in CAD/CAM systems continue to save manufacturers tens of millions of dollars in time and resources over non-computerized methods. As a consequence, CAD and CAM technologies are responsible for massive gains in both productivity and quality, particularly since the 1980s. For some purposes CAD and CAM methods can be used exclusively of one another, and in general, CAD is used more commonly than CAM.

CAD involves creating computer models defined by geometrical parameters. These models typically appear on a computer monitor as a three-dimensional representation of a part or a system of parts, which can be readily altered by changing relevant parameters. CAD systems enable designers to view objects under a wide variety of representations and to test these objects by simulating real-world conditions.

CAM picks up where CAD leaves off by using geometrical design data to control automated machinery. CAM systems are associated with computer numerical control (CNC) or direct numerical control (DNC) systems. These systems differ from older forms of numerical control (NC) in that geometrical data is encoded mechanically. Since both CAD and CAM use computer-based methods for encoding geometrical data, it is possible for the processes of design and manufacture to be highly integrated.

Full forms

Meaning (Full Forms) of Automobile Technology -
CRDi - (Common Rail Direct Injection)
TDi - (Turbocharged Direct Injection)
DTS-i - (Digital Twin Spark Ignition)
VTVT - (Variable Timing Valve Train)
MPFI - (Multi point fuel injection)
ABS - (Anti Lock Braking)
SOHC - ( Single OverHead Camshaft)
DOHC - (Double Overhead Camshaft)
SUV - (Sport Utility Vehicle)
MUV - (Multi Utility Vehicle)
SAE - (Society of Automotive Engineers)
HCV - (Heavy Commercial Vehicle)
LCV - (Light Commercial Vehicle)
CVTi - (Charged motion Variable Time Ignition)
CCVTI - (Controlled Combustion Variable Timing Ignition)
EBD - (Electronic Brakeforce Distribution)
BHP - ( Brake Horse Power)
BMEP - (Brake Mean Effective Pressure)
BSFC - (Brake Specific Fuel Consumption
CC - (Cubic Capacity)
CDI - (Capacitor Discharge Ignition)
C.I ENGINE - (Compression Ignition Engine)
CNG - (Compressed Natural Gas)
DFI - (Digital Fuel Injection)
DI ENGINE - (Direct Injection Engine)
EC ENGINE - (External Combustion Engine)
FHP - (Frictional Horse Power)
GVW - (Gross Vehicle Weight)
HVAC - (Heating ventilating and Air Conditioning)
IC ENGINE - (Internal Combustion Engine)
IHP - (Indicated Horse Power)
IMEP - (Indicated Mean Effective Pressure)
ISFC - (Indicated Specific Fuel Consumption)
Kph - (Kilometer Per Hour)
Kpl - (Kilometer Per Liter)
OHV - (Over Head Valve)
SFC - (Specific Fuel Consumption)
SI ENGINE - (Spark Ignition Engine)
VDB - (Ventilated Disc Brake)
VVTi - (Variable Valve Timing intelligence)
4WD - (Four Wheel Drive(FWD))
2WD - (Two Wheel Drive)
TC - (Traction Control)
ESC -(Electronic Stability Control)
ARAI -(Automotive Research Association of India)
EGR -(Exhaust Gas Recirculation)
EVRV -(Electronic Vacuum Regulator Valve)
WGT -(Waste Gas Turbocharger)
VGT - Variable Geometry Turbocharger)

How to install NX-9.0

Hey guys here is the solution for most common problem with so many Mechanical engineers, installing the software.

I'm uploading a video which will let you know the procedure to install Unigraphics NX-9.0 in your pc or lapi.  

CAD/CAM/CAE

Today onward ill be adding some videos and other stuff that will help you learn CAD tools.

"List of all Indian Vehicle Companies"

“List of all the Indian Vehicle Brands”

      

      These are all the automobile companies from India.

This post consists of all the basic information that you should know about these Indian brands.

1.    TATA MOTORS LIMITED

Tata Motors
More Dreams Per Car

                   o   Founded: 1945

                   o   Founder: J. R. D. Tata (Jamshedji Ratanji Dadabhoy Tata)

                   o   CEO: Cyrus Pallonji Mistry

                   o   Parent organization: Tata Group

                   o   Products: Automobiles, Commercial Vehicles, Coaches, Buses, Construction                                                              equipment’s, Military Vehicles, Automotive Parts.

                   o   Subsidiaries: Jaguar Land Rover, Tata Daewoo, Tata Marcopolo, Tata Hispanoo.

                         o  Website: www.tatamotors.com  

      Formerly known as 'Tata Engineering and Locomotive Company (TELCO). Tata Motors is one of the leading car companies. The company was founded way back in 1945 by the founder J R D Tata and was first manufacturer of locomotives.

    The automotive industry headquartered in Mumbai, Maharashtra, and has numerous assembly and manufacturing plants in Pune, Dharvad, Sanad, Lucknow, Pantnagar, and Jamshedpur.

      Let’s talk about key peoples of Tata Group.

1.      J. R. D. Tata- Jahagir Ratanji Dadabhoy Tata (1904-1993)

    He was chairman of Tata Sons. He became India's first licensed pilot in 1929.

In 1992, he was awarded the Bharat Ratna, India's Greatest Civilian award.

    Organizations founded: Tata Motors, Air India, TCS, Tata Chemicals, Tata Global Beverages, Tata Institute of Advance Studies, Bombay Flying Club.

           

          2. Ratan Tata

          Former CEO of Tata Group (1991-2012). He awarded by Padma Bhusan and Padma Vibhushan.

After turning 75 Ratan Tata stepped down and got replaced by Cyrus Pallonji Mistry (M.D of Shaporji Pallonji Group) on Dec-28-2012.

He is the sith chairman of Group not to be named Tata after Nowarji Saklatwal had led the group between 1932 & 1938.

First vehicle was launched in 1954 with collaboration with Daimler Benz, ended up in 1969.

First passenger vehicle was launched in 1991- Tata Sierra.

   

       

     For more info about Tata Group click the link given below.
     Tata family tree PDF

          Tata Group

     Tata Motors

     Tata Motors Subsidiaries

     Tata Motors Products

     Tata Motors Cars

     Tata Group Subsidiaries

     Tata Motors worldwide

    

     Keep visiting guys...

     There will be new post about Maruti Suzuki and other companies also.

Automobile Sector

Top Automobile Companies in India
      
      This list is according to Indian market survey done in early feb-2015.

1. Tata Motors ltd.
2. Mahindra & Mahindra ltd.
3. Maruti Suzuki India ltd.
4. Hero MotoCorp ltd.
5. Bajaj Auto ltd.
6. Ashok Leyland ltd.
7. Sundaram Clayton ltd.
8. TVS Motor Company ltd.
9. Eicher Motors ltd.
10. Force Motors ltd.

in next post i'll be adding the information about all the top automobile companies in Indian market.

Welcome to MechaTron-3D

Hi guys, this is Mahesh Pipare.

This blog is for helping many students appearing for CEED exam and also ill put some tutorials to learn how to use CAD tools like CATIA V5, Unigraphics NX-9.0 , Proe- 5.0, Autocad , Mastercam X5 and Ansys-14.