1. An aluminum air-cooled engine cylinder head for a single cylinder, 2-stroke engine is to be...

1. An aluminum air-cooled engine cylinder head for a single cylinder, 2-stroke engine is to

be die-cast. The overall diameter of the cylinder head is 101.6 mm. If the projected

plan area of the runners and gating system is 100 mm2 and the casting pressure is 10

MPa (1500 psi), what minimum locking force is required for the die-casting machine in kN.

Solutions

Expert Solution

In die casting, the cavity is clamped. The clamping force required is calculated as follows

- Initially calculate the total projected area of a cavity- it includes the part area and aslo the riser area

- Then determine the number of cavities(In this case 1)

- When the molten material is pored into cavity, the force that tries to separate is equal to pressure in the cavity *the area

samet mamat answered 1 year ago

Next > < Previous

Related Solutions

The 12 cylinder 2 stroke cycle compression ignition engine of an oil tanker is operating at...

The 12 cylinder 2 stroke cycle compression ignition engine of an oil tanker is operating at 150 rpm The brake mean effective pressure of the engine is 400 kPa and the excess air coefficient is 2. The crankshaft of the engine is directly coupled to a propeller and a torque of 1500 kN-m is applied. The engine operates on light fuel oil which can be approximated as C12H26. If the brake specific fuel consumption is 200 g/hp-h what is the...

A four-cylinder four-stroke engine is operating at a bmep of 2 bar. The pressure at inlet...

A four-cylinder four-stroke engine is operating at a bmep of 2 bar. The pressure at inlet valve closure is 0.37 bar, and the fmep is 0.8 bar. Assuming that the engine gross indicated efficiency is unchanged, verify that disablement of the valves on two cylinders would reduce the fuel consumption by about 13 per cent compared with about an 8 per cent fuel saving if the fuel was not supplied to two cylinders. Assume that the gross imep is proportional...

A two-cylinder, four-stroke gas engine has a bore of 380 mm and a stroke of 585...

A two-cylinder, four-stroke gas engine has a bore of 380 mm and a stroke of 585 mm. At 240 rev/min the torque developed is 11.86 kNm. If the engine is supplied with a mixture of gas and air in the proportion of 1 to 7 by volume. The estimated volumetric efficiency is 85% and the Qnet,p of the gas is 38.6 MJ/m3. Calculate the brake thermal efficiency of the engine.

A 2-stroke motor cycle petrol engine cylinder consists of 15 fins. If the outside and inside...

A 2-stroke motor cycle petrol engine cylinder consists of 15 fins. If the outside and inside diameter of each fin are 200 mm and 100 mm respectively, the average fin surface temperature is 475 c and atmospheric air temperature is 25 c calculate the heat transfer rate from the fins when the motor cycle is stationary.Assume all the fins in a horizontal position.

A four-stroke engine is running on methane with an equivalence ratio of 0.8. The air and...

A four-stroke engine is running on methane with an equivalence ratio of 0.8. The air and fuel enter the engine at 250 C, the exhaust is at 5270 C, the heat rejected to the coolant is 340 MJ/kmol of fuel.(a)Write the equations for stoichiometric and actual combustion.(b)By calculating the enthalpy of the exhaust flow, deduce the specific work output of the engine, and thus the overall efficiency. (c)If the engine has a swept volume of 5 Litres, and volumetric efficiency...

A piston-cylinder heat engine has five kilograms of air as the working fluid. Analyze this engine...

A piston-cylinder heat engine has five kilograms of air as the working fluid. Analyze this engine as a Carnot engine and determine the work of expansion and the amount of heat rejected in KJ assuming constant specific heat at 300k. During the heat rejection, the temperature is 300?. There is a temperature difference of 600 degrees in the engine. At the beginning of the heat rejection process, the pressure is .2MPa and during heat addition the volume doubles. Draw the...

A ship is fitted with six-cylinder CI engine of 75 mm bore and 100 mm stroke....

A ship is fitted with six-cylinder CI engine of 75 mm bore and 100 mm stroke. The engine has a brake power output of 110 kW at 370 rpm. The volumetric efficiency at this operating condition, referred to ambient conditions, of 1.013 bar and 20˚C is 80%. You have just fitted a mechanically driven supercharger which has isentropic efficiency of 0.7 and the pressure ration of 1.6. The supercharged version of the engine has a volumetric efficiency of 100% referred...

A test was conducted on a 4-stroke four cylinder engine having 6.9 cm diameter and 8.9...

A test was conducted on a 4-stroke four cylinder engine having 6.9 cm diameter and 8.9 cm stroke. The fuel supply to the engine is 0.065 kg/min. The B.P measurements are given below with constant engine speed of 300 rpm: With all cylinder firing = 16.9 kW Cut off at 1st cylinder = 8.46 kW Cut off at 2nd cylinder = 8.56 kW Cut off at 3rd cylinder = 8.6 kW Cut off at 1st cylinder = 8.46 kW If...

Assume that a single cylinder of an automobile engine has a volume of 523 cm3 ....

Assume that a single cylinder of an automobile engine has a volume of 523 cm3 . a. If the cylinder is full of air at 77 ∘C and 0.980 atm , how many moles of O2 are present? (The mole fraction of O2 in dry air is 0.2095.) b. How many grams of C8H18 could be combusted by this quantity of O2, assuming complete combustion with formation of CO2 and H2O?

Isooctane is supplied to a four-cylinder spark-ignition engine at 2 g/s. Calculate the air flow rate...

Isooctane is supplied to a four-cylinder spark-ignition engine at 2 g/s. Calculate the air flow rate for stoichiometric combustion. If the engine is operating at 1500 rev/min, estimate the mass of fuel and air entering each cylinder per cycle. The engine displaced volume is 2.4 liters. What is the volumetric efficiency?

Subjects