Read the description of the operations required to make a part, and considering the production rate, select a machine or machines to do the jobNote: "Transverse" means perpendicular to the axis of rotationv Part requires turning, drilling, boring, and parting off, at a production rate of a. A swiss automatic or a CNC lathe with a live center in the tailstock, and possibly10,000 parts per month.a steady restPart requires turning, drilling, boring, and parting off, at a production rate of b.A manual lathe with no special fixturine10 parts per month.v Part requires turning, drilling, boring, and parting off plus a transverse hole, d.A manual lathe, followed by setup on a manual milling machineat a production rate of 10,000 parts per month,• Part requires turning, drilling, boring, and parting off, plus a transverse hole,at a production rate of 10 parts per month.v Parts are very slender and require high precision for turning and parting off,at a rate of 10,000 parts per monthC. CNC Lathe with no special fixturinge. A multispindle lathe (aka a "mil-turn")

Given: operations required and production rate To find: Select machine

Answered: Read the description of the operations…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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1. In a production turning operation, the cylindrical workpiece is 425 mm long and 190 mm in diameter, Feed 0.30 mm/rev. What cutting speed must be used to achieve a machining time of 7.0 min?
INo Spac.Heading Heading 2 Title Subtitle Subtle Em... Emphasis Intense E. Intense Q. Subtle Ref.. = Strong Quote Paragraph Styles 3 6. . .7 I The mill project will have a vertical miller (with a set of collets). There will be several end mills 2", 5/8", and 7/8" in diameter. The same drill bits that were available for the lathe project will be available for the miller project ((sizes 1/16"to ½" diameter), as will the measuring tools (micrometer and a Vernier caliper). There will also be thread form tools 10-32 and "-20. 2.108 1500 1.750 Ø 0.875 #7 Drill Thru to 7/8 Dia. -3/8 Dia. x .25 Deep R 0.467 9.5' 0.625 1.500 REF 0.937 0.867 0.617 0.937 31 0.305 0.750 0.250 0.121 t0.541 1.438 3x 0 0.180 Thru Threadform 10-32 UNFX.50 Deep 1.063 2.250 0.219 2.750 All Units in Inches Tolerance on Dimensions X or Fractional +/-1/32" XX +/- .01 „XXX +/- .005 Please Describe in detail all the steps in chronological order and dimensions to machine this piece A Focus
The following data were obtained from a time study performed on a horizontal milling machine: Average manual effort time per cycle: 4.62 minutes. Average cutting time (electric feed): 3.74 minutes. Average performance rating: 115%. Backlash due to machine (power supply): 10%. Slack due to fatigue: 15%. What is the standard time for the operation?
The Conner Company uses a two-step process for making wooden boards with holes in them. Step 1 is drilling and Step 2 is sanding. Drilling is done using an electronic drill that takes 8 minutes to set up and ½ minute to drill each hole. Step 2 involves a sanding machine with a 20 minute setup time that processes each board (regardless of how many holes are in it) in 10 minutes. If all orders are for a single batch of 10 boards, and each board has 14 holes what is the capacity of this 2-step process? (Assume that both machines only need to be set up once.)
1. In face milling, the axis of the cutter is tangent to the surface being milled. (a) true or (b) false 2. When product variety is hard, the usual approach is batch production.(a) true or (b) false 3. In a turning operation, the change in diameter of the workpart is equal to which one of the following:(a) 1 x depth of cut, (b) 2 x depth of cut. (c) 1 x feed, or (d) 2 x fe feed? 4. A turning operation is normally performed on which one of the following machine tools: (a) drill press, (b) lathe, (c) milling machine, (d) planer, or (e) shaper? 5. Machined parts can be classified as rotational or nonrotational. Which of the following are examples of operations that create nonrotational geometries: (a) boring, (b) drilling, (c) milling. (d) planning, and (e) turning?
A steel shaft of 75 mm diameter and 250 mm long turned on a lathe. Speed of spindle = 2 m/s, feed = 0.25 mm/rev. Find time required for 50 jobs by assuming 2 minutes for handling of each job.
The product shown in Figure 5 is to be machined using a non-conventional machining process. The material of this product is Silicon Nitride that can withstand a temperature up to 450 °C. i. Propose the appropriate process to produce the part. ii. Justify the mechanism of the process in (i). Figure 5: Pump impeller
A 200 mm long magnesium alloy bar, 63 mm in diameter is turned on a lathe using a high speed steel cutter travelling at 180 mm/min. The spindle rotates at 450 rpm and lathe is equipped with a 10 kW motor, operating at a mechanical efficiency of 92%. The final diameter of the magnesium alloy bar is 59,5 mm. Indicate with a sketch the recommend size and location of the following tool angles: back rake, side rake, end relief, side relief and side and end cutting edge. Calculate the cutting time for the machining process.Calculate the required cutting force.
In a factory where there are three shifts: The machine overhead cost is found to be £8.20 / hr, the labour overhead cost is found to be £30.20/hr, and the premises overhead cost is found to be £3.50/hr. Using the principle of overhead costing: If a single component takes 23 minutes to manufacture on the milling machine. What is the cost / part? You should include machine costs, labour costs and premises costs in your answer, but you can neglect material and energy costs. Express your answer in £ rounded up to the nearest penny.
A NC lathe cuts two passes across a cylindrical workpiece under automatic cycle. The operator loads and unloads the machine. The starting diameter of the work is 3.00 in and its length = 10 in. The work cycle consists of the following steps (with element times given in parentheses where applicable): 1 - Operator loads part into machine, starts cycle (1.00 min); 2 - NC lathe positions tool for first pass (0.10 min); 3 - NC lathe turns first pass (time depends on cutting speed); 4 - NC lathe repositions tool for second pass (0.4 min); 5 - NC lathe turns second pass (time depends on cutting speed); and 6 - Operator unloads part and places in tote pan (1.00 min). In addition, the cutting tool must be periodically changed. This tool change time takes 1.00 min. The feed rate = 0.007 in/rev and the depth of cut for each pass = 0.100 in. The cost of the operator and machine = $39/hr and the tool cost = $2.00/cutting edge. The applicable Taylor tool life equation has parameters: n = 0.26 and…
a) What is the main function of lathe machine? b) What is the function of Boring in Lathe machine? c) Gives three (3) examples of surface type that Lathe machine can produce? d) What the difference between CNC and turret Lathe machine? e) Give two (2) advantages and disadvantages of CNC machine.
A control block costs $.75 per part to mill without a fixture and $.43 per part when a fixture is used. Assuming the cost of the fixture is $175.00, how much will the fixture save over a production run of 2200 parts?

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