How Engines Are Made In Factories?

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2 Video Views·Apr 1, 2025
Have you ever wondered how an engine is made? Let's find out in this video.
It all starts at the metal foundry. Traditionally car engine blocks were made of iron,
however today most of them are made of lightweight aluminum alloy for fuel efficiency.
One of the first processes is to melt the aluminum ingots. Workers load aluminum ingots into a device
called the elevator bucket, which is positioned above a jet melter, which is essentially a gas
fired furnace. The bucket drops the ingots into the 800 degree celsius fire, liquefying the
aluminum which is then collected in a giant container. Meanwhile in the other part of the
factory a special sand is prepared which is used to make the sand molds. Over here the zircon sand
is mixed with glue and a hardener. This combination of materials can withstand the intense heat of
molten metal but only for one casting procedure. A machine then blows the sand and glue mixture
into a master mold which is made of iron. Moreover it also injects a gas that activates the hardener
which solidifies the mixture. The worker then gives a quick visual check before sending over
to the sophisticated robots which makes sure that the finished mold is per the design specification
The sand mold is now carefully placed and locked. The sand mold is filled from the bottom to avoid
contaminating the metal with aluminum oxide. Oxide is generally formed when molten aluminum comes
it is then released from its locked position and taken for further processing. The worker then
carries the one-piece engine block to a workbench. First the excess sand is removed from the block
followed by a thorough visual examination. Now the engine block is ready to be used and is shipped
to another factory for the final assembly of the engine. Once the engine block is manufactured a
working engine is only halfway complete. An engine consists of an assortment of mechanical and
electronic components all of which must be assembled in a working hole. One of the first
steps is a 3D scan of the engine block which is then checked against design specification and
tolerances. The scan can also reveal any manufacturing defect before it goes further
into the assembly process. Here the cylinder bores the hole in which the pistons move up and down
and are finished off by machining. The tool carves a crisscross pattern on the cylinder walls.
Lubricating oil will cling to the grooves in this pattern which enables the pistons to move smoothly.
The engine block then arrives at an inspection table where a QC personnel
carefully performs a visual inspection using an advanced camera.
Meanwhile in the other part of the factory pistons are made ready to be integrated to
the engine block. Pistons are made of aluminum. They're installed in the cylinder bores of the
engine block. A steel connecting rod attaches each piston to the crankshaft.
Next the crankshaft is installed and given a run.
The engine travels through various assembly lines and important components are added as it goes along.
Once completed it's now ready for testing. The necessary fuel hose pipes are attached and the
engine is being made ready for its trial run. The room is locked and no unauthorized access
is allowed during the testing phase. It's then fired up and put through its paces to make sure
it produces the advertised power while other crucial data is also recorded simultaneously.
The final step is to tighten all the bolts as per the specified tolerance and keep a record.
The engine is now ready to be shipped.
Let us know which manufacturing process you like the most in the comments below.
