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Production of the Volvo 850 in
Gent (B)
The Volvo 850 has mainly been manufactured
in Gent (B). Actually, manufactured is the wrong word. Volvo Gent is an
assembly plant.
Moulding
Small and large machines mould plates from
HSS: for the body the outer sidepanels are one piece, doors, bonnet, boot
lid, firewall, side members, front and rear part bottom floor pan, and
the SIPS box, delta? transverse arms, exhaust silencers, engine supports
and engine sub-frame are being moulded in Sweden (Olofstrom). In Torslanda
the inner sidepanels, fenders, roof and bottomplate generate.
Robots
The pre-fab system saves half the shipments.
In this way it takes less than 150 frame parts to assemble a Volvo 850.
Before all these parts come together in the 14-km long weldingstreet, a
thorough quality test is being done. Deviations of more than 0,05mm don’t
pass the test. The welding is being done by 170 robots, which do 95% of
the 2800 joints.
Body building
First the luggage compartment and the engine
compartment are build, after which these two are being connected to the
bottomplate together with the SIPS box. Aided by advanced measuring devices
a margin of 0,3mm is allowed. On this base the inner sidepanels are being
welded. At this stage it is being determined whether it is going to be
a left or right-hand steered, four or five doors version. In the next stage
the outer sidepanels are being placed. The fenders will be placed later.
Next in line is the roof. After this setting (by 4 joints) the typical
850 body is brought to a separate room where the roof is being welded by
2000 degrees in 17 seconds per side. In this way an extremely strong part
is created also contributing to the SIPS. The whole is being ingeniously
checked on deviations by means of blacklight and laserbeams. The doors
and fenders are mounted and various small corners are welded manually.
Paint shop
After sanding and polishing the bonnet and
hood are placed and the frame is ready to be sprayed. Scouring is
being realised by eightfold washing. Then the body is dipped into a bath
of phosphate and a coating of zinc prevents it from rust. Infrared rays
are doing drying. The grey coloured basic coating is cathodic. All joints
are being closed-off and the nose receives an extra protective treatment
while the bottomplate gets a polyester coating. Before the coatings are
being cured in an oven, a second basic coating is applied. After sanding
and an excessive check-up the Volvo 850 is ready for the actual top coatings.
After applying 6 coatings the body again disappears into an oven to cure
the paint. A white protective foil is applied immediately onto the horizontal
vulnerable parts.
Engine production
The engines, in full operational state,
are being shipped from Skovde to Gent. The manufacturers of seats, bumpers,
fueltanks, plastic components etc are situated in the neighbourhood of
Gent in order to guarantee a just in time delivery.
Preparing the marriage
During production the doors are being dismounted
from the painted body and are taken to another part of the factory to set
windows, electricity and upholstery.
The body is meanwhile being prepared for
the marriage with the engine and the drive train. The electrical systems
under the dashboard are installed as well as the gearshift. Also the frontpart
is mounted as the sub-frame is being filled with the wheelhouse, brakes
and radiator. Before this, the engine is connected to the specific gearbox
and filled up with oil. The rearpart is also mounted. By installing the
exhaust pipe, fueltank, catalyst and wires the front- and rearpart are
connected. Now the under-frame is ready to marry the body. With a Volvo
850 this is completed in two steps, full automatically. In the first step
the struts are brought in a vertical position after which the body is placed
on the under-frame. The screw-robot connects the under-frame to the body
with 29 screws. Now the Volvo 850 is ready for the final assembling. After
setting the moonroof (if any) the windows are placed. Followed by the soundproofing
and the carpet. The dashboard, console and lightunits are mounted. Under
the bonnet all is connected and wired and the backseat and front-seats
find their space. Now the wheels can be placed. Finally the doors and bumpers
are installed.
First engine run
Now its time to start the 850: the 5-banger
ruffles for the first time, however, the work is not completed yet. Not
by a long shot!. According to quality standards the engine and gearbox
should run continuously for 5 minutes. Also all the wiring is checked completely.
The brakes are tested and the wheels are balanced. An obligatory cold shower
checks if the 850 is waterproof. Now the Volvo 850 can be custom made by
placing, for example, an original Volvo soundsystem. Ready to make the
journey to the customer, if this Volvo is not picked to undergo a special
quality audit on 2000 points. Nearly 2% of Volvo’s total production is
checked in this manner. The outcome is directly communicated to the specific
production line or supplier. In this way not only high quality stability
but also continuous quality improvement is guaranteed.
Awards and S70-V70
Besides Gent, the Volvo 850 is also assembled
in Torslande, Halifax (Canada), Thailand, Malaysia and Indonesia. In the
course of 1997 the Volvo 850 has been replaced by the Volvo 70 series.
The latter has been improved on not less than 1800 points.
Most of the production remains to take place
at the Volvo factory in Gent. They produce approx. 740 S/V 70 a day. Also
as far as the quality is concerned there is no need to worry: Volvo Cars
Europe Industry at Gent is the first non-Japanese factory to receive the
keen desired TPM Special 1996 Award. An award for the Total Productive
Maintenance granted by the Japanese Institute of Plant Maintenance
ruuds70©
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