Tooling u Test 1 Questions and Answers 100% Correct!

What must a programmer do to calculate the X-axis location of the start of the partial arc shown? The programmer must find the length of - ANSWER-Side a, double it, and subtract that amount from the workpiece face diameter. A standard twist drill has a 0.50 in. (12.70 mm) diameter. What trigonometric calculations can be used to find the accurate drill depth? - ANSWER-Find the length of the shortest side of the right triangle, side b, that is formed at the drill tip, using the ratio tan 59°=0.25 in. (6.35mm)/a. What is the purpose of adding an approach to a cut? - ANSWER-It increases safety. What is the difference between the R method and the I and K method of programming arc motions? - ANSWER-The R method uses the radius size, while the I and K method uses the arc center coordinates. What is the function of codes G41 and G42 in cutting an arc into a part? - ANSWER-They tell the control whether the tool is to the left or right of the feed direction. What steps are necessary to find the Z axis coordinate for the end point of the partial arc shown? To find the Z axis location for the end of the partial arc, find the length of - ANSWER-Side a, then subtract it from the arc radius. Which of the following will correctly calculate the X axis location for the center of a concave full arc, when using TNRC? - ANSWER-Double the arc radius and add it to the value of X at the start of the cut (X at arc center = 2 x radius + X at start). In addition to the dimensions of the radius itself, what information must a programmer know in order to utilize tool nose radius compensation? - ANSWER-Tool orientation and programmed path Why do most cutting operations on the lathe begin with a facing cut? - ANSWER-Program zero is usually located on the face of the part. Which trigonometric function of a right triangle is the side opposite the angle divided by the side adjacent to the angle? - ANSWER-Tangent Which of the following do standards dictate? Standards dictate the: - ANSWER-Language used by CNC machines and part programs. What does a T code communicate? - ANSWER-Which tool to use