Engineering, 11.04.2020 04:50 kianag312

(35 points) Consider an experiment to improve a heat treatment process on truckleaf springs reported in Pignatiello and Ramberg (1985). The heat treatment whichforms the camber (or curvature) in leaf springs consists of heating in a high tem-perature furnace, processing by a forming machine, and quenching in an oil bath. The height of an unloaded spring, known as free height, is an important qualitycharacteristic whose target value is 8 inches. An experimental goal is to make thevariation about the target 8.0 as small as possible.

The five factors listed in Ta-ble 1 were chosen across the various stages of the process:

(A)furnace temperature

(B)and heating time

(C) are from the heating stage, transfer time

(D) is the time ittakes the conveyer to transport the springs from the furnace to the forming ma-chine, hold-down time

(E) is the time that the springs are held in a high pressure

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 14:10, BardiFan

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Answers: 3

continue

Engineering, 04.07.2019 18:10, aaliyah80

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Answers: 1

continue

Engineering, 04.07.2019 19:10, nbug2121

Arigid tank contains 10 kg of air at 137 kpa (abs) and 21°c. more air is added to the tank until the pressure and temperature rise to 242 kpa (abs) and 32°c, respectively. determine the amount of air added to the tank. [r-0.287 kj/kg k]

Answers: 3

continue

Engineering, 04.07.2019 19:20, natalie2sheffield

Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference

Answers: 3

continue

You know the right answer?

(35 points) Consider an experiment to improve a heat treatment process on truckleaf springs reported...