Calculate scallop height for simple 5-axis and 3-axis milling machining of flat surface, ruled surface using...
Suppose that surface finish is very important for the profile milling job described in Problem 4. Thus down milling is going to be used. Rewrite the NC program points to accommodate this requirement. Show the new path on a sketch such as Figure 40-B. (Up versus down milling is discussed in Chapter 24.) | Pt. 4 Pt. 3 I y-axisI Pt.5 Origin Pt. 2 l Pt. 1 End milling cutter 1" diameter X-axis FIGURE 40-B
(2D Milling Toolpaths) Explain the difference between 2-1/2D, 3D and 4-axis machined parts, Explain the difference between common CAD and CAM graphics views Identify 2D machining features based on part geometry and your knowledge of tools and 2D toolpaths, identify commonly used machining parameters for 2D tool path operations, explain the purpose, general parameters, and use the facing toolpaths, Explain the purpose , general parameters, and use of 2D contour toolpaths, Explain the purpose and rules for using cutter Diameter...
PART 3: OPTIONAL PROBLEMS Vertical milling is used to machine the whole surface (20 x 150 mm) of an aluminum block. The feed is along the longest length of the part. Use SI units for all your work. Tool: ø12.7 mm (ø0.500 in), 30 mm (1.181 in) long, 4 inserts Workpiece: 20 x 150 x 10 mm height (0.78 x 5.900 x 0.390 in height) a) Sketch the set up and list relevant information. Show any motion with an arrow....
please make it clear 1. What is the difference between forming and machining? 2. List 3 basic machining processes. Show a sketch for each with tool and work piece movement direction. 3. Give the force components for oblique and orthogonal machining. 4. What is different about the workpiece and tool for turning vs boring? 5. The equations for cutting speed, machining time, and metal removal rate are the same for turning and boring? TRUE or FALSE 6. For a lathe,...
Calculate the surface-to-volume ratio of the following cubes: Cube 1: length, width, and height: 5 mm Cube 2: length, width, and height: 3 mm a. What were the surface-to-volume ratios for Cubes 1 and 2? (2 points) b. Which cube would be more efficient as a cell? (1 point)
2. A stationary object is resting on a flat surface. A force of 5 Newtons pushes parallel to the surface, moving it a distance of 10 meters. *a) How much work is done? *b) If no other forces act, what will be the object's final kinetic energy? c) If the object has a mass of 4 kg, what will be objects final speed? *3. How many joules of work does it take to lift a 5 kg object a height...
5. A rubber ball dropped on a hard surface takes a sequence of bounces, each one 3/5 as high as the preceding one. If this ball is dropped from a height of 15 feet, what is the total distance it has traveled after it hits the surface the fifth time? The answer is 54 and 21/125 ft, but why? A rubber ball dropped on a hard surface takes a sequence of bounces, each one 3/5 as high as the preceding...
Question 5. Consider the following four obiects: a hoop, a flat disk,a solid sphere, and a hollow sphere. Each of the objects has mass M and radius R. The axis of rotation passes through the center of each object, and is perpendicular to the plane of the hoop and the plane of the flat disk. Which of these objects requires the largest torque to give it the same angular acceleration? A) the hoop D) the flat disk B) the hollow...
a) A workpiece (φ-75 mm, 1 275 mm) is machined using turning at a feed rate of 0.25 mm/rev. At a cutting speed- 3.5 m/s, the turning tool is ineffective after machining 3 parts, and at a cutting speed = 2.5 m/s, the turning tool is effective for producing 20 parts. Calculate the Cutting Speed that will allow 30 parts to be machined between tool changes [20 marks] b) An aluminium alloy workpiece (tensile strength - 325 N/mm2 and yield...
answer question 6 pls Water Volume and Mass 1. Position a meterstick vertically on a flat surface, such as a wall or the side of a lab bench. Be sure Unit for y-variable- y-axis the metric scale of the meterstick is on the outside and secure the meterstick to the wall or lab bench with two strips of masking tape. 200Scale for y-variable Graph Title 2. Drop a ball as close as possible to the meterstick and measure (a) the...