
Question 1
A 20-year-old milling machine is to be repaired. A single turning point test is carried out using Taguchi Method on the milling machine. FIVE factors were selected, and TWO levels for each factor were chosen as shown in Table Q1a. Cutting Speed (factor C) was considered to interact with Tool Cutting Edge (factor A) and Cutting Fluid (factor B). Table Q3a shows the results of the experiment.
a. Produce and assess the initial combination of this experiment using Factor Respond Graph of Taguchi method based on the given data and results without interactions. (10 marks)
b. Produce the combination of the optimum factors for the optimum yield output of this experiment with the Interaction Respond Graph.
(15 marks)
[Total = 25 marks]
Question 2
By using analytical to solve for this function, f(x) = x3 -50 using:-
a. Bisection method
b. False position method
c. Newton Raphson method
d. Secant method
Find which one is faster to compute and how many iterations it converged to find the root.
NOTE:
• The root is 3.6840.
• Find your own XL and XU range base on the root.
(25 marks)
[Total = 25 marks]
