a.Define the following terms i)Driling and boring b.State the metal cutting tool used in driling c.State the three types of drill presses
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Question 1
a.Define the following terms
i)Driling and boring
b.State the metal cutting tool used in driling
c.State the three types of drill presses
d.label 3 drill presses
Step by step
Solved in 4 steps
- 1. If a machinist wanted to drill a % inch hole in a piece of machine steel using a high speed steel drill. At what speed in revolutions per minute should he operate the drill press? 2. Find the revolutions per minute of an 8 mm drill if it is used to cut an aluminum workpiece using a high carbon steel drill. 3. The rpm setting of the drill press is set to 600 rpm. What is the maximum diameter in inches of a high speed drill if it is used to drill a tool steel material? 4. A drill press has the following rpm settings; 350, 600, 1100, & 1600. What rpm setting must be used if a 15 mm high speed steel drill is used to cut brass workpiece? 5. A machine operator drills a hole of a 3/8 inch diameter to a stainless steel using a carbon steel drill. He sets the drill press rpm setting to 900 rpm. Is he operating at correct setting? If not, then what must be the correct rpm setting considering that the machine has the following rpm settings of 300, 600, 900, 1200, and 1800?1. List the operations and the tools needed to make the following shape.2. Find the speed of rotation (RPM N) of each tool during roughing andfinishing.The material of the piece is Stainless Steel (C45) with CARBIDE TOOL.4:25 l 4G O A moodle.nct.edu.om – Private Question 2 Not yet answered Marked out of 1.00 P Flag question From the following figure identify a lathe operation using both longitudinal & cross feed. O a. Job Tool feed Taper Turning Ob. Parting-off Facing Od. Drill feed Centre Drilling
- Question 1 By using a labelled diagram describe the function of a horizontal milling machine. Describe two methods of producing screw threads in the workshop. Describe the various tool life criteria that are used to estimate the life of a cutting tool. Describe the various milling cutters that are used on a vertical and horizontal milling machine and state for what purpose they are used. Describe 2 methods of producing tapers on a lathe machine. Your answers to each question should be supported by suitable diagrams for clarity.-How many holes require drilling? -What is the center to center distance of the 6mm tapped holes? -What tap drill is used for holes marked Z? -How many surfaces are machine finished? -What are the dimensions of the face marked F & C? -What are the dimensions have symbols A, E &, B -In what dihedral angle is the drawing made? -What is the max and min dimensions of D -What is the tolerance of measurement D?What is the diameter of a #10 twist drill?
- Describe at least two methods and the equipment used to measure tool length and radii on/for a mill. Why is this important?8. A note in the comment section of a title block mentions that all faces should have a +.10 tolerance before heat treatment. The machinist follows the instructions but for diameters he leaves a tolerance of +.20. Why? O A. The machinist may have committed an error, and the part must be returned prior to heat treatment. OB. Diameter dimensions usually change by twice as much as the faces. OC. The tolerances for diameters aren't as critical as face tolerances. D. It's easier for the machinist to adopt MMC for diameters.Question 3 The Extrude Cut feature in SOLIDWORKS can be used to create both through holes (holes that go all the way through a part) and counter bore holes (holes that do not go all the way through a part), such as the holes shown in the 2-dimensional image below. True False Counterbore