Detonation

It is caused by the fuel with a low octane rating and is the tendency for the fuel to autoignite in an engine combustion chamber.
The resulting knock or ping is the sound of the pistons slamming against the cylinder walls. Severe detonation can break pistons and destroy engines.
This early ignition of fuel creates a shock wave throughout the cylinder as the burning and expanding fuel air mixture collides with the piston that is still traveling towards T.D.C. (top dead center) .

Hydraulic lifting (valve)

All the engines have hydraulic valve lifters in one form or another. The most common types of engine that has them is your vehicle engine. They created to get rid of the need for combustion engines to have mechanical clearance in the engine valve train.
The reason that clearance is required is to keep the valve from being held open and destroyed as the valve train goes through its process of thermal expansion. In in effect, hydraulic valve lifters keep the valve healthy and protected from an engine normal thermal expansion process.

Differential


Differential  : When the vehicle travels around a corner, the distance traveled by the outer wheel is greater than that traveled by the inner wheel. If the wheels are mounted on dead axles so that they turn independently of each other, (the front wheels of the vehicle an ordinary vehicle) they turn at different speeds to compensate for the difference in travel. But the the wheels are positively driven by the engine to device is necessary to permit them to revolve at different speeds without interfering with the propulsion of the vehicle. To accomplish this purpose, a system of the differential gears is provided to allow the outer wheel to revolve at a higher speed than the inner wheel while turning corner. In this way, the inner wheel skidding of the which involves the sliding friction. being harmful for the life of the tyres is overcome


Construction and working :
Figure shows the construction and working of the differential mechanism.
It Consists of The Following components:
(i) Crown wheel or ring gear
(ii) Drive pinion or crown pinion.
(iii) Cage
(iv) Sun gears
(v) Planet or star pinions.
The drive pinion meshes with the crown wheel. The crown wheel is free to rotate on the rear axle half shafts whereas the sun gears are splined on the ends of each half shaft. The cage is rigidly attached to the crown wheel. The cage consists of the pin on which two planet pinions are mounted. The planet pinions are free to rotate on the pin but are meshed with the sun gears.


When the vehicle is traveling straight in the head position, the power flow from the drive pinion is shown in the Figure a. The drive pinion gives the power to the crown wheel whereas the crown wheel, cage, the pin and the planet pinions rotate the one unit. The planet pinions revolves on the pin but the axes their transmit the power to the sun gears. The sun gears and the half shafts are splined together and revolve due to the rotary motion of the planet gears to the whole .

Cone clutch


It shows the cone clutch. It consists of two cones, internal and external cone. Friction material of a wire and asbestos are used for fitting on internal cone. The cones are held together in position by a large and strong coil spring. The torque is transmitted from the engine to the flywheel and internal cone to the splined shaft when the clutch is engaged. The foot operated clutch pedal is employed to pull out the internal cone and overcome the spring pressure during disengagement of the drive. Cone clutch was used for larger and earlier type vehicles but now it has become obsolete due to certain disadvantages.

Press and Weld Operations for Front Fender (Scooter)


  
The Honda Two Wheeler press shop consists of 4 Hydraulic Presses capable of producing 350 Ton force each. A bank is fed into the first press which is draws it into the form. The next press is fitted with a shearing die which cuts the excess parts (flashes) and pressed part is finished. 



The finished part is visually inspected and buffing is done to ensure that no defect/dent reaches the weld area. The presses work in pair of two. One for drawing and second for shearing.
Then these parts are sent to the weld section where they are clamped in a jigand a robotic arm welds the two parts together. An operator then checks the weld done by the robot in order to ensure that there is no welding miss or spatter. These defects are rectified by manual welding or by buffing. The second part of the fender is welded using spot welding. The weld is then inspected again. Finally the brake wire harness is welded. Also the L stay and R stay are welded (Stay are the clips) which are used to hold the fender along with the fork assembly. A fiber tool is used to remove any seam from the external surface.The welded part is then sent for paint. Where it is painted and sent for Fork Assembly in AF-1

FRAME ASSEMBLY PROBLEMS:


  1. Swing arm pressing.
  2. Handle switch fitment.
  3. Reducing line stoppage.
  4. Race cone pressing.

KAIZEN Philosophy: -


 KAIstands for “change” and ZEN stands for “improvement”.
So KAIZEN means, “Continual change for improvement”. This is the activity, which is open for all the employees, and all the employees take keen interest in this activity. “The more the number of Kaizens in a department, the more is the honor for the same” makes this event very much interesting.

Why to choose the PDCA Approach…….?


1.   Being a closed loop, it helps in better control of the various steps.
2.   Like a closed loop system it gives feed back and thus better control of the   
   various activities.
3.   It helps in continual improvement of the methods.
4.   It helps in pin-pointing the problem.
5.   Better comparison between Planned and Actual Achievements and time.
6.   Makes the things simpler and easier to understand as each step is self-explanatory.
7.   Better understanding of the basic procedure being followed.
8.   Helps in better and positive thinking.
9.   Helps in achieving the results in a more systematic manner.
10. Helps in finding the root cause of the problem.
11.Continuous monitoring approach resulting in better achievements.
12.Development of new ideas.
13.Better and safe approach towards the problem.
14.Examination of the problems and their countermeasures is more systematic.
15.It is a systematic approach towards the problem.

RESEARCH METHODOLOGY


This methodology will explain how I went about doing my project. It is divided into two sections Sampling details & Data collection + analysis. In this there will be explanation of what kind of sample data I have taken for my project and the collection of that data.

 

SAMPLING AND DATA COLLECTION:

For the completion of my project I went through the random sampling of data. In which I have picked up some components randomly for the observation and did the analysis as required for the project. Photographs were taken and relevant readings were recorded for documentation & project report.
Data collection includes all the relevant and appropriate data required for the completion of the project. This is of two kinds, Primary data and Secondary data. Primary data includes all the data which I have collected from the crankcase line such as component flow path, dent prone areas on the cover & joint faces, dimensions of the cone plugs and actual dents on KSPG components during the trial PP1 before the mass production of this new model. Some data was collected from the metallurgical lab after hardness inspection of cone plugs and some data was collected from engine assembly.
Apart from this I have also used some data from the department itself as a secondary data. It includes the quotations from vendors, process sheets, PQCS-I & II, plug cone drawings, operation standards, defect flow sheets etc. This collection has been shown in the annexure attached ahead.                                  
These all were the samples that I have taken for the study to complete my project in a better way. I decided to choose this study material from our company itself because this was best and comprehensive according to the executives and the line leaders who themselves have designed it so far. So it was very easy for them to teach me about that. Also it is very clear from the fact that the current documentation is better because the production target was getting achieved very well.

 


 

1) THE PDCA APPROACH: -

Among the most widely used tools for continuous improvement is a four-step quality model-the plan-do-check-act (PDCA) cycle, also known as Deming cycle or Shewhart cycle.




Plan- Identify an opportunity and plan for change.
Do- Implement the change on a small scale.
Check- Use data to analyze the results of the change and determine whether it made a       
difference.
Act-If the change was successful, implement it on a wider scale and continuously assess                 
your results. If the change did not work, begin the cycle again.



this approach were incorporated while implementing the countermeasures. It helped in the uninterrupted

flow of project activities. It is a result oriented methodology with side by side analysis of the result. It helps as a perfect effectiveness and improvement monitor. It provides us with appropriate ideas and concrete steps to avoid failures. It is a complete
quality analysis + control package with minimum discrepancies. That is why it is sometimes referred to as root cause of all improvements.
As a whole the PDCA methodology was of immense help during my stint of seven months as an industrial project trainee.     

Atomobile Domestic Sales Trends


Automobile Domestic Sales Trends

(In Nos)
Category
2006-07
2007-08
2008-09
2009-10
2010-11






Total CVs
467,765
490,494
384,194
532,721
676,408
Total Passenger Vehicles
1,379,979
1,549,882
1,552,703
1,951,333
2,520,421
Total Two Wheelers
7,872,334
7,249,278
7,437,619
9,370,957
11,790,305
Three Wheelers
403,910
364,781
349,727
440,392
526,022






Grand Total
10,123,988
9,654,435
9,724,243
12,295,397
15,513,156


Two-wheeler manufacturer Honda Motorcycle & Scooter India (HMSI) reported 2.09 per cent jump in its total sales for March at 1,47,301 units compared to 1,44,288 units in the same month of the previous year.
For the entire 2010-11 fiscal, the company's total sales increased by 30.31 per cent to 16,56,727 units from 12,71,377 units in the previous fiscal, HMSI said in a statement.
During March, motorcycle sales inched marginally to 65,899 units as against 65,888 units in March 2010, it added.
The company reported an increase of 3.83 per cent in scooter sales to 81,402 units last month from 78,400 units a year ago during the same month.
During 2010-11, the company's motorcycles sales rose by 44.06 per cent to 7,48,895 units from 5,19,832 units in the previous fiscal.
Scooters sales in the last fiscal stood at 9,07,832 units as against 7,51,545 units in 2009-10, up 20.80 per cent.

MARKET DETAILS OF AUTOMOBILE INDUSTRY:-


Automobile Industry is one of the few industries which have shown a continuous rapid growth since the industrial revolution in early 20th century. Also it has grown within itself, with the no. of manufacturing companies and types of vehicles increasing every year. Indian automobile industry is no exception with most of the major companies of the world investing in INDIA. With the Indian economy on boom, even the domestic companies are making rapid strides and competing with the international ones. The dramatic influence that automakers have on global economy is one of the indications of how widespread and significant this industry has become.
                                  The globalization of the Indian automobile industry continues, and their collaboration with foreign companies is flourishing. Gradual changes in the Indian economy and rising disposable income of the people is resulting in increased motorization. Global connections are seen as an effective way to respond to this trend, and will continue to multiply as the world’s automobile industries try to meet the increasing demands in a growing number of markets.
The main reasons for this exponential growth and revolution in Indian automobile industry (especially two-wheelers) are:-



  1. Government’s initiative on rural roads and better connectivity with major towns and cities.
  2. Improved agricultural performance.
  3. Upward trend of purchasing power in the hands of rural people.
  4. Better understanding between the world economies resulting in free and easy trade.
  5. Increasing trend of cooperation between world class companies in the field of automobile industry with an approach to reduce the costing.

HONDA PHILOSOPHY


·         It provides every Honda associate around the world with a vision.
·         It tells us the values of our business.
·         It bonds everyone together towards a common mission.
·         It provides a constant standard for correct action and ethical behavior.
·         It shows the link between the company’s past, present and future.
·         It challenges the organization to strive for the realization of its vision
·         It helps our organization to maintain its sense of uniqueness

HONDA PLANT FACILITIES :-


Few of the In-House Facilities
High Pressure Die Casting, Gravity Die Casting & Low Pressure Die Casting
Gravity Die-Casting & Low pressure Die Casting Sections are for manufacturing critical engine parts.




Welding Robots
Weld Shop has spot welding, seam welding and MIG welding machines to weld various sheet metal parts to form the basic frame and other scooter panels.



Paint Shop Robots
Paint Shop has a conveyor system, which is unique amongst all Honda Factories in the world. The conveyor car carrying the parts is rotated and dipped so as to enable good paint adhesion, high gloss and superior paint finish. Robots are used in painting for improved paint finish.




Engine Assembly
Engine Assembly is done in an enclosed air pressurized area to protect the engine from dirt and dust. Each of the engines is then inspected for various parameters.


Honda Unicorn:-



After having conquered the racing circuits with its unparalleled technology, Honda presents the Unicorn. The Honda Unicorn is the First Motorcycle of HMSI. It is a tough & stylish      4-stroke 5 geared motorcycle incorporating the best of Honda’s worldwide technology standards.
·                     First Bike with Mono Suspension
·                     Sporty Design & Macho Looks 
·                     4-stroke 150 cc engine
·                     Best fuel efficiency in its class (60 km/l)
·                     Riding comfort even during multiple ride







PARTICULAR
DETAILS
ENGINE
Type
4-Stroke,Single Cyl., Air Cooled, OHC
Displacement
149.1 CC
Max Power
13.3 bhp @ 8000 rpm
Max torque
12.8Nm @ 5500 rpm
Transmission
5 Speed Constant Mesh
Ignition
Digital CDI
(Multi Mapping)
FEATURES
Suspension
Mono Suspension
Safety
Multi reflector Head Lamp
Gear Mechanism
1 Down – 4 Up
Brakes
Front – Disc
Rear – Drum
BODY
Body
Steel

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