1.What was the steel oil sump function in transmission
2.Oil pan production steel sheet preparation
3.Raw material Chemical element and mechanical property test
4.Steel oil sump deep drawing production process
5.Transmission shield welding for the oil package
6.OIl sump oil plug seat welding
7.Leaking test for the engine oil sump
1.Heavy duty engine oil pan sump development production process
Engine oil pan play a key role on lubrication system,All the lubrication for engine start from the pan ,the oil pump drive by the belt and pickup the oil from the engine oil sump by the oil pickup tube screen and oil pump
The first thing to give out the performance engine oil sump was the mold,due to most of the oil sump was made by the steel pan ,it was start by a steel sheet.
2.All the steel oil sump was starting by a steel decoiling process:
Decoiling raw materil
All the raw material from the steel factory was by the coil ,it was much more convenience to transport.
It was very friend for the storage,when we want to use those raw materil we need to break it into the steel sheet plate as our work instruction require.
The capacity for decoiling machine was:2500mm with 45T for a single coil.
3.Raw material Chemical element and mechanical property test
Chemical element and mechanical property test
All the raw material need to go though Chemical element and mechanical property test before go into the mass production workshop.
If the Elongation rate was too low it cant be use for engine oil pan production due to the deep drawing production process.
We need to know the batch of raw material yield strength and tensile strength so that the press can give out the proper force to drawing and forming the engine oil sump
4.steel oil sump deep drawing production process
Steel pan drawing process
When we get the steel sheet plate from the decoiling ,the next production was the deep drawing stamping production process.
We give the press force for hydraulic pressure as result from Chemical element and mechanical property test
The first piece of the steel oil pan oil sump need to go though by the dimension inspection according to the quality control system.if the dimension meet the drawing requirement ,then we move into mass production.
5.Transmission shield welding for the oil package
Shield welding for oil sump
When the OEM design the car there was some space limit ,so the pan cant be stamping drawing by just one production process ,we need to weld two stamping part of the pan together.That was why we need MIG welding
We use the robot to control welding parameter such as Current, voltage, gas flow rate
The capacity for the robot was 1800mm*1000mm*800mm carry the most current for welding machine was 500A
6.OIl sump oil plug seat welding
OIl sump oil plug seat welding
The oil plug for the pan was another work piece which need to be welding on the oil pan by spot welding.
To increase the production capacity we will the ABB robot insted of human laobr spot welding.
We need to Knockout test the sample before mass production according to the quality control system.
7.Leaking test for the engine oil sump
Leaking test for the engine oil sump
There may be Burn through case during the welding process ,so each pan need to go though by the leaking test
By immerse the whole pan into water by a special equipment and 10bar air push inside the pan ,after 30 second if there was leak bubble around all the pan ,the pan was ok ,otherwise the pan will be reworking .
We were the auto part metal stamping bending pressing forming bending company for metal part almost 30 years .
Our main production ：Engine oil pan, oil sump, transmission oil pan, oil sump, engine oil pick up, engine oil filter, transmission oil filter, oil dipstick, auto coolant pipe
