FRONT FENDER DESIGN.

TITLE: DESIGNING FRONT FENDER USING SIEMENS NX.

OBJECTIVE:

• To design the vehicle front hood.
• Learning the industrial approach of how vehicles BIW parts are designed and manufactured.
• To be industry ready for the role of Mechanical Design Engineer.

INTRODUCTION:

when vehicle is moving tire pick up stones and other and hurl them in all directions. Fenders are basically present to prevent any injuries to pedestrians and constrain the motion of these particles.

Fender can be designed in two ways. half bumper type and full bumper type.

When we use full bumper type the blank we used to create this is really big and also there is lots of scrap wastage. But in the case of a half bumper type we have the high possibility to reduce the scrap this is called scrap management. This will reduce the manufacturing cost of the fender, so that we can provide a better fender with a cheaper price to the customer.

DESIGN METHODOLOGY:

Apart from the aesthetic area of the front fender. It required 5 different mounting to be designed through which the fender can be joined to the vehicle,by taking industry constraints in mind they have to design.

This 5 areas are-

Drip area

A-pillar

Sill mounting

Body

Bumper

EXPLANATION:

Drip area:

Drip area is used to join the fender with the engine compartment. For designing the drip area we have to consider following constraints:

1. We have to leave 200 mm from rear end of the fender as in that region viper motor and other mountings will be mounted.
2. Similarly, from the front front end of the fender we have to leave 150mm space for the headlight housing.
3. Hood side drip depth must be 40mm or less as maximum productivity is achieved at the depth of 40mm. If depth exceeds 40mm then rigidity bead is to be provided. Also forming is not feasible if depth exceeds 60mm due to wrinkling and spring back.
4. The side endmost part of the drip area should be 10 mm away from the engine compartment part so that assembly of the fender will be smooth.
5. To prevent fender fixation bolts to be seen from outside and improve the appearance of parting gap between hood and the front fender, adequate angles are provided.

A-pillar:

This region is used for fastening the fender with the A-pillar of the car. While designing this mounting Emboss with a flat surface is provided for increase in stiffness.

Sill mounting:

Sil area is the lowest area of fender. One section of it is fastened with the body and another section is fastened to the sill of the vehicle.

Body mounting:

• It is connected with the body for stable position of fender
• Dart is also provided to increase the stiffness of this area.

Bumper:

This is the portion for mounting the bumper with the help of fasteners.

Splash mounting:

• Splash area plays a vital role in anti chipping.
• It prevents the hurling stones or spray to ensure pedestrian safety.
• Mountings are connected using plastic pins.

DIFFERENT VIEWS OF FRONT FENDER:

Isometric View:

Front View:

Top View:

Right Hand Side View:

Left Hnad Side View:

CONCLUSION:

• Successfully designed the vehicle front fender.
• Learned Siemens NX software as an industrial software.
• This project really helps me to enhance my designing skills and help me to become industry ready for the role of Mechanical Design Engineer.

Overall the project is successful.