MATERIALS AND MANUFACTURING

MANUFACTURING :

Material Used:

Mild Steel - (Combustion Chamber Outer, Flame tube ,Flanges, Spark Plug Fittings,   Air inlet manifold, Nozzle)

 

ØMild steel is the most common form of steel as its price is relatively low while it provides material properties that are acceptable for many applications.

ØMild steel has a low carbon content (up to 0.3%) and is therefore neither extremely brittle nor ductile.

Brass - ( Fuel Injector & Fittings)

  Alloy Type: Binary

  Content: Copper & Zinc

  Density: 8.3-8.7 g/cm3

  Melting Point: 900-940 °C

COMPOSITION Of Mild Steel:

  

  Element                       Weight %

  C                                   0.18-0.23

  Mn                                0.30-0.60

  P                                   0.04 (max)

  S                                   0.05 (max)

Properties Of Mild Steel:

  Density:              7,861.093 kg/m³(0.284 lb/in³)

 

  Tensile strength:   500 MPa (72,500 psi) Max

 

  Young's modulus:  210 GPa.

 

  Melting  point:       1350-1530°C (2462-2786°F)

Methodology:

• Mild Steel pipes of Required Diameter were obtained and cut to required specifications.

• The joints were TIG welded .

• The Flanges of the sections are held by Fasteners.

• The fittings for the fuel inlet and spark plug holder were fabricated using manual lathe using the turning process.

• The combustion Chamber is sealed usng a rubber O-Ring.

• The flame tube holes were drilled using a drilling machine.

• The air flow pipe coupler was drilled and then threaded for fitting the pressure transducer.

IN PICTURES:

   FABRICATION:

Combustion Chamber  & Flame Tube:

NOZZLE FABRICATION:

As shown in the picture the nozzle was fabricated and then TIG welded onto the turbo's outlet . However during the the first attempt the weld didn't hold and cracked on cooling . The weld didn't crack during the second attempt .