Hood design-Week 2

HOOD DESIGN

AIM

To Design Hood Outer Panel, Inner Panel and the necessary reinforcements by following the Master Section and assmebling the hinge and striker

HOOD OUTER PANEL

• The class A is given and we need to create the outer panel and inner panel with this
• Following hemming clearance is must one for the best quality on the outer panel

INNER PANEL

• The inner panel is offseted from the class A as per the master section
• Then the emboss is created the clearance on the outer panel and inner panel emboss is 5 mm then mastic placing area is created
• The emboss is created in flat for the hinge assembly area and striker assembly area
• Holes are created in the emboss for attaching the hinge and striker

Trajectory

• For placing the striker in the right place the trajectory is needed
• First we need to assemble the hinge with the touch and parallel constrains the mirror the hinge
• The centre point is created in the hinges then line have been created with those points
• From the centre point a circle is created approximately the tangent line is created
• The perpendicular line from the striker and the tangent line coincide by align constrain

MASTIC DATA

• Mastic is a sealing component that will connect two of the suface together
• In this inner panel the mastic surface area is created with 7mm radius
• The mastic will melt during heating tha hood so this mastic will help to join the inner panel and outer panel
• A single mastic will strength to the hood around 80mm
• The mastic is used in the hood to avoid welded mark and give the asthetic look in the outer panel

EMBOSS DEFINITION

• The emboss is created for joing the inner and outer panel
• The cutouts are made in the emboss it will reduce the weight of the hood
• If the car met with an accident the force will be distribute in the hood first so the cutouts will help to shrink the hood

Deep-Drawing

• Deep drawing is a sheet metal forming process in which a sheet metal blank is radially drawn into a forming die by the mechanical action of a punch.
• It is thus a shape transformation process with material retention.
• The process is considered "deep" drawing when the depth of the drawn part exceeds its diameter.

Hemming

• Hemming is a sheet metal forming process in which sheets are joined by bending it to 180°.
• This hood is formed by hemming process.
• In this process, usually a sheet is bent with the help of inner sheet.
• The clearace of the inner panel and outer panel is 0.2 mm

RELIEF SECTION

• Relief section is done in the outer panel for 3mm because the roller can't go through on the curve area

FINAL ASSEMBLED THICKEN PART