Find the time required to drill the holes

Assignment Help Civil Engineering
Reference no: EM131423142

A two-spindle drill simultaneously drills a 1/2-in hole and a 3/4-in hole through a workpiece that is 1.0 in thick. Both drills are twist drills witb point angles of 1180. Cutting speed for the material is 230 ft/min. The rotational speed of each spindle can be set, individually. The feed rate for both holes must he set to the same value because the two spindles lower at the same rate. The feed rate is set so the total metal removal rate does not exceed 1.50 ins/min. Determine

(a) the maximum feed rate (in/min) that can be used,

(b) the individual feeds (in/rev) that result for each hole, and

(c) the time required to drill the holes.

Reference no: EM131423142

Questions Cloud

Find the cutting time to complete the facing operation : The end of a large tubular work part is to be faced on a NC vertical boring mill. The part has an outside diameter of 38.0 in and an inside diameter of 24.0 in.
What role does an appellate court take : What role does an appellate court take following a trial in which the government or defendant claims that the outcome of the trial violated the Constitution
Find the value of r2 and explain its meaning : Use the given data to find thecorrelation coefficient r, regression equation and scatter plot in MS Excel. Based on the linear correlation coefficient r, is this a good model? Explain.What is the best predicted test score for a student who spent 7 h..
What is meant by bootstrapping when raising seed financing : Explain what is meant by bootstrapping when raising seed financing and why bootstrapping is important. Describe the role of venture capitalists in the economy and discuss how they reduce their risk when investing in start-up businesses.
Find the time required to drill the holes : A two-spindle drill simultaneously drills a 1/2-in hole and a 3/4-in hole through a workpiece that is 1.0 in thick. Both drills are twist drills witb point angles of 1180. Cutting speed for the material is 230 ft/min.
Describe the sample and the population for given setting : A survey of 2036 undergraduate college students aged 18 to 24 reports that 62% of college students say they have encountered some type of sexual harassment while at college. Describe the sample and the population for this setting.
Explain each and every type of positioning strategies : Describe and explain each and every type of positioning strategies such as key attribute positioning, positioning against a competitor, umbrella positioning, etc.
Describe the culture of your organization : How would you describe the culture of your organization? In a traditional sense an organization’s culture consists of the values, beliefs, attitudes and behaviors that employees share and use on a daily basis in their work. what advice or compliment ..
Opinion about different question of human interest each day : If you connect to the Web site zdaily.com/polls.htm, you will be given the opportunity to give your opinion about a different question of human interest each day.

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine temperature when thermal equilibrium is reached

A 50-kg iron block at 80C os dropped into an insulated tank that contains 0.5m^3 of liquid water at 25C. determine the temperature when thermal equilibrium is reached.

  Determine the magnitude of the resultant couple forces

friction on the concrete surface creates a couple moment of 100 Mm on the blades of the trowel. Determines the magnitude of the resultant couple forces so that the resultant couple on the trowel is zero

  Determine the volume of an object that weighs

A thin wire ring, 3 cm in diameter, is lifted from a water surfaceat 20 C (DEGREE CENTIGRADE). Neglecting the wire weight, what isthe force required to lift the ring? is this a good way to measuresurface tension? should the wire be made of any partic..

  Determine the optimum emise velocity per unit speed

If the aircraft flies at 9000 m standard altitude, make a plot of drag (in N) versus speed (from stall to 240 m/s) and determine the optimum emise velocity (minimum drag per unit speed).

  Determine what should the size of the gap at b be

The bar AB has an axial rigidity of EA. The bar is rigidly attached at A while there is a gap at B. A load P acts at point C and has a large enough magnitude to close the gap at B.

  Calculate the work required if the process is adiabatic

A cylinder/piston contains 1 kg methane gas at 100 kPa, 300 K. The gas is compressed reversibly to a pressure of 800 kPa. Calculate the work required if the process is adiabatic.

  Calculate what should the sample volume be

The dissolved oxygen of sample water is 1.5 mg/L. At 25 C, the dissolved oxygen of the dilution water is 8.25 mg/L. You are told the BOD5 of the sample is 130 mg/L. You have a target final dissolved oxygen of 3.0 mg/L

  Compute the design strengths of a rectangular beam with

Compute the design strengths of a rectangular beam with bw=15 in, d = 36 in, d'=2.5 in, fy= 60ksi, fc'=4ksi, and at the top of the beam are 4 #8 bars, the bottom has two rows of 4 #10 beams

  How many trucks are required and what is the production

On a shovel/truck operation the production of the shovel is 293 BCY/h and a job efficiency of 0.75. The trucks used have a capacity of 12 BCY and have a cycle time of 45 min.(excluding loading).

  Estimate length of pipeline required for the friction losses

Water leaves a reservoir at 0.05 m^3/s through a 200-mm riveted steel pipeline that protrudes into the reservoir and then immediately turns a 90º bend with a local (minor) loss coefficient equal to 0.3.

  Find the optimal solution

The company would like to distribute the songs between the two CDs such that the used space on each CD is about the same. Formulate the problem as an IP, and find the optimal solution.

  Derive expressions for the strain energy density

derive expressions for the strain energy density

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd