The following structural section is direct extruded from an aluminum billet in which Lo = 500...
The following structural section is direct extruded from an aluminum billet in which Lo = 500 mm and Do = 110 mm. Dimensions of the cross section are given in the figure. Die angle = 90° and strength coefficient for the material is 195 MPa, and the strain hardening exponent is 0.18. Determine: Extrusion ratio, Shape factor and Length of the extruded section if the butt remaining in the container at the end of the ram stroke is 25 mm....
Question 4 5 pts The following structural section is direct extruded from an aluminum billet in which Lo = 500 mm and Do = 100 mm. Dimensions of the cross section are given in the figure. Die angle = 90° and strength coefficient for the material is 190 MPa, and the strain hardening exponent is 0.17. Determine: 1. Extrusion ratio, Shape factor and Length of the extruded section if the butt remaining in the container at the end of the...
Question 4 5 pts The following structural section is direct extruded from an aluminum billet in which Lo = 500 mm and Do = 100 mm. Dimensions of the cross section are given in the figure. Die angle = 90° and strength coefficient for the material is 190 MPa, and the strain hardening exponent is 0.17. Determine: 1. Extrusion ratio, Shape factor and Length of the extruded section if the butt remaining 6:09 20% end of the ram stroke is...
A 2.00” diameter billet will be reduced in diameter to 1.00” using direct extrusion as shown below. The strength coefficient and strain hardening exponent of the material are K = 60,000 lb/in2 and n = 0.18. The coefficients for Johnson’s strain formula are a = 0.8 and b = 1.5. The ram force available on the extrusion press is 1.75 X 10^6 lb. Calculate the maximum length (Lmax) of billet that can be extruded. Container Ram Final work shape F...
Q.5 Extrusion: A billet that is 76+X mm long with diameter = 36+Y mm is direct extruded to a diameter of 22+Y mm. The extrusion die has a die angle = (70+X)°. For the work metal, K = 600 MPa and n = 0.2+(Z/100). In the Johnson extrusion strain equation, a = 0.8 and b = 1.4. Determine: (a) extrusion ratio, (b) true strain (homogeneous deformation), (c) extrusion strain, and (d) ram pressure and force at L = 70, 60,...
zis 3. A Cylindrical billet is 75 mm long and 35 mm in diameter. It is reduced by direct extrusion to 20 mm diameter. The half die angle x 45°. In the flow curve for the work metal, strength coefficient 500 MPa and strain-hardening exponent -0.25, Coefficient of friction at the work- die interface 0.15. Given that total extrusion pressure P, is the sum of the die pressure P and the friction pressure P, between the container and the extruded...