Brakoh drill answer key

A hydraulic press is used to apply 500 lbs of force to press fit an assembly. The cylinder has a 2" piston and 1.5" rod, and a 16" stroke length. What flow rate (in gpm) is required to extend the press in 6 seconds?

Milling is the process of machining using rotary cutters to remove material by advancing a cutter into a workpiece. This may be done by varying direction on one or several axes, cutter head speed, and pressure. Milling covers a wide variety of different operations and machines, on scales from small individual parts to large, heavy-duty gang milling operations. It is one of the most commonly used processes for machining custom parts to precise tolerances. A torque of 500 N-m is developed in the cutter under steady-state cutting conditions. One of the 16 teeth on the cutter breaks during the cutting operation. Determine the cross-section of the arbor to limit the amplitude of angular displacement of the cutter to 1°. Assume that the arbor can be modeled as a hollow steel shaft fixed at both ends. Data: Length of arbor = 0.5 m, mass moment of inertia of the cutter = 0.1 N-m², speed of cutter = 1000 rpm.

Project 7: In this project you were assigned to explore your mechanical design and system capabilities. Your manger asked you to prepare a technical research report to evaluate the effects of misalignment of shafts and the measures that are taken to prevent problems from occurring. The hiring committee asked you to deliver a short report showing your evaluation (no more than 600 words).

OBJECTIVE TYPE QUESTIONS 1. The velocity ratio of two pulleys connected by an open belt or crossed belt is 2. (a) directly proportional to their diameters (b) inversely proportional to their diameters (c) directly proportional to the square of their diameters (d) inversely proportional to the square of their diameters Two pulleys of diameters d, and d, and at distance x apart are connected by means of an open belt drive. The length of the belt is (a)(d+d₁)+2x+ (d₁+d₂)² 4x (b)(d₁-d₂)+2x+ (d₁-d₂)² 4x (c)(d₁+d₂)+ +2x+ (d₁-d₂)² 4x (d)(d-d₂)+2x+ (d₁ +d₂)² 4x 3. In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then (a) open belt drive is recommended (b) cross belt drive is recommended (c) both open belt drive and cross belt drive are recommended (d) the drive is recommended depending upon the torque transmitted Due to slip of the belt, the velocity ratio of the belt drive 4. (a) decreases 5. (b) increases (c) does not change When two pulleys…

a) If a pneumatic cylinder -driven power tool has the following data as shown in Table 1, determine the rate of reciprocation in rpm. Table 1 Piston diameter 44.5 mm Piston stroke 152 mm Air pressure and temperature (at the 687 kPa gauge and 27°C pneumatic cylinder Available flow rate 0.05 m³/min (at standard atmospheric conditions of 101 kPa and 20°C)

I can emphasize that I can wait as long as possible, you don't have to worry about the time. if you think you need any extra information, let me know, but please do not cancel the question. ------ Company Z has the following historical information about sales for one of its hydraulic pump models. (PICTURE OF THE PERIOD AND YEARS) On the other hand, the manufacturing process used by Company Z is sequential* and has the following characteristics: (THE OTHER IMAGE) * Sequential; in the sense that the output of Mi is the input of Mi+1.** In any order; in the sense that they can be interchanged, e.g. MA -> MB or MB -> MA. The company's operating costs are as follows: Cost per final unit produced "defect free": $100 Cost per final unit produced "with defects": $150 Cost per excess inventory (units "free of defects"): $50 Cost per inventory shortage ("defect free" units): $200 Revenue per final "defect free" unit produced and sold: $250 We have the following operating conditions: - Any…

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The following data were obtained in a study taken on a horizontal milling machine:Parts produced per cycle: 8.Average measured cycle time: 8.36 minutes.Average measured stress time per cycle: 4.62 minutes.Average fast traverse time: 0.08 minutes.Average cutting time with electrical power: 3.66 minutes.Performance rating: 115%.Clearance (machine time): 10%.Slack (effort time): 15%.The operator works on the task 8 hours a day and produces 380 parts. How many standard hours does the operator work? What is the operator's efficiency for the 8-hour day?

(a) Draw a sketch (which will be used in the FluidSIm software) the design and assembly of the Hydraulic Circuit for the drive (fixing and working) of a drill, with the following characteristics: - Sequential operation, put pressure, for advance and return of the cylinders (according to the proper operation for the device) controlled by a directional 4x3 electric drive way; (b) The circuit must provide for different speed ranges for drilling work so as to allow different materials to be treated.   Note: Set the safety valve to 55 bar.

A robot is used for loading and unloading of parts to automated flexible machines. Loading time is 1 minute; unloading time is 1.5 minutes; machining time 15 minutes; Robot travel time between the machines including the inspection time is 3 minutes. Cost of robot C,=30 TL/Hour; cost of machines C2=40 TL/Hour. How many machines (integer number) should be assigned to the robot so that the total robot and machine costs per cycle are minimized? 8 - 176 a) 4 b) 3 c) 2 d) e) 6.

I need help with part a b and c in question 2.  Question one is listed because it is referenced in question 2.   Any help with question 2 would be appreciated even if it is not all 3 parts. thank you     1.  A certain batch of parts is routed through six machines in a batch production plant. The setup and operation times for each machine are given in the table below. Batch size is 200 and the average nonoperation time per machine is15 hr. Determine (a) manufacturing lead time and (b) hourly production rate for operation 4.Machine 1 2 3 4 5 6Setup time (hr) 5 3 6 4 5 3Operation time (min) 3.0 3.3 8.2 3.9 4.5 2.3 a. 6(4.3+200(3.9/60)+15) = 193.8 hours 24.2 days if 8 hour shiftb. 4(60)+200(3.9)/200 =5.1 hourly production for operation 4 2.   Suppose the part in the previous problem is made in very large quantities on a production line in which an automated work handling system is used to transfer parts between machines. Transfer time between stations is 30 sec. total time required to…

Please solve part a b and c and show all work thank you

Excavator loading time = 36 seconds per loading pass Truck travelling time = 351 seconds per truck Truck dumping time = 22 seconds per truck Unloaded truck Travelling back time = 181 seconds per truck Truck queuing or waiting time = 75 seconds/truck Excavator-truck spotting time = 14 seconds/truck Estimate the total number of units (trucks), if the total production of a coal mine is 4Mt per year at 91% recovery. Use the cycles per production hour from above, figure out with your reasonable detailed calculations and assumptions for all other parameters you need in your calculations including the loose and bank (prime) volume and tonnage of the coal per truck per year.

A machine is expected to have a maintenance cost of 1000 the first year.  It is believed that the maintenance cost will increase 500 per year.  The interest rate is 6% compounded annually.  Over a 10-year period, what will be the approximate effective annual maintenance cost?

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?