How a car is built, I believe many of my friends aren't really familiar with the process. Through this article, I hope to help everyone understand how vehicles are manufactured, so that we can all gain more knowledge about automobiles. Especially for those in the mechanical industry — this is essential information you should know!
**First: Stamping Process**
Goal: **To produce various body stamping parts**
Here is a roll of special steel plate used in automotive manufacturing, neatly stacked and with a thickness ranging from 1.0mm to 1.2mm. This steel will go through a transformation to become different parts of the car body.
The entire roll of steel is first cut into different sizes and sorted for various purposes.
After cutting, the steel sheets are trimmed and then sent to presses for the next stage.
The flat steel sheets are reshaped using a press, forming complex parts of the vehicle body.
The stamped front fenders are placed neatly in the finished area, ready for use.
A press-formed side body of the vehicle is shown here.
At this point, a batch of steel sheets have been transformed into body parts with intricate shapes and structures. These parts are then sent to the welding shop for the next step.
**Second: Welding Process**
Goal: **To weld various body stamping parts into a complete body**
In the welding shop, different body parts are combined through a key process — welding.
After each welding operation, skilled workers carefully inspect the results to ensure quality.
Harvard’s body welding also uses a large number of industrial robots, which significantly improves efficiency and reduces the risk of errors.
Once the body is welded, further inspections are conducted to check for any issues.
After confirming everything is in order, the body-in-white is sent to the paint shop for the next stage.
**Third: Painting Process**
Goal: **To prevent rust and make the body look good**
The assembled body is hoisted into the paint shop for electrophoresis and anti-rust treatment.
After the electrophoresis process, the surface is cleaned to check for defects before painting.
Because paint contains toxic substances and manual painting is inefficient, Harvard uses robotic painting instead.
At this point, the painting process is complete, and the painted body is sent to the assembly shop for the final steps.
**Fourth: Final Assembly Process**
Goal: **To assemble the body, chassis, and interior into a complete car**
The chassis, including the engine and transmission, is sent to the assembly shop. Before installing the body, let's take a look at how the chassis is built.
Components like the steering system are installed on the frame.
This process involves attaching suspension links to the vehicle.
Mounting the spare tire bracket is another important step.
Next, the rear drive axle housing is installed. Many off-road vehicles use leaf springs instead of coil springs.
Then comes the installation of the front double fork boom suspension.
The fuel tank, with a capacity of over 80 liters, is installed next.
At this stage, the chassis is flipped 180 degrees to allow for the next set of installations.
After flipping, the chassis is secured with slings and prepared for the next steps.
Various gas and liquid lines are installed through the chassis.
Front and rear shock absorbers and brake discs are then mounted.
The engine and transmission are installed as a powertrain.
Drive shafts and exhaust pipes are added next.
Once the chassis is lowered to the ground, it's time to prepare for the body installation.
While the chassis is being assembled, the body and interior parts are also being put together.
The painted body is lifted by a conveyor chain to the interior section of the assembly shop for internal installation.
Door seals, rear door locks, and B and C column interiors are installed.
Engine compartment noise firewall, wiring harnesses, and instrument panels are added.
Floor sound insulation, door panels, and seat belts are also installed.
The body is then hoisted onto the chassis and secured in place.
Electronic control devices, handbrakes, and CD players are installed on the dashboard.
Rear seats and steering wheels are added, followed by front armrest boxes and front seats.
Finally, the interior is completed, and the car is now fully assembled.
However, before it can be shipped, there are still several tests to pass.
**Fifth: Testing**
Goal: **To identify potential quality issues during production and reject defective products**
Even though the car is complete, workers must ensure it runs smoothly. The engine compartment is inspected for internal parts.
Necessary fluids such as antifreeze, brake fluid, windshield washer fluid, and engine oil are added.
Preheating is done to install side rubbing strips.
Although the paint was checked during spraying, a final inspection is performed to detect any damage during the final assembly.
Four-wheel alignment and exhaust emission tests are also conducted to meet environmental standards.
Cars that pass the test undergo a sealing performance test in a shower room, where high-pressure water is sprayed to check for leaks.
After passing all tests, the cars are driven on various test lanes inside the factory.
Finally, they are inspected one last time before being placed in the parking lot, ready for delivery.
Black Wire
Black Wire: Black wire, also known as black annealed wire, is a type of wire that has undergone an annealing process to make it softer and more flexible. It is typically made from low carbon steel wire and has a black or dark gray appearance. Black wire is commonly used for tying, bundling, and securing purposes in construction, agriculture, and general applications. It is known for its malleability and ease of use.
Loop Tie Wire: Loop tie wire is a type of wire that is preformed into loops or ties for easy and efficient tying applications. It is often made from galvanized or black annealed wire. Loop tie wire is commonly used in construction, such as securing rebar, connecting WIRE MESH panels, and bundling construction materials. The preformed loops allow for quick installation and provide a secure and reliable connection.
Annealed Double Loop Tie Wire: Annealed double loop tie wire is a specific type of loop tie wire that has undergone an annealing process to make it softer and more pliable. It is typically made from black annealed wire. The double loop design consists of two preformed loops on opposite ends of the wire, allowing for easy and secure fastening. Annealed double loop tie wire is commonly used in construction, gardening, and other applications where quick and reliable tying is required.
Iron Binding Wire: Iron binding wire, also known as baling wire or tie wire, is a type of wire that is commonly used for binding, bundling, and securing various materials. It is typically made from galvanized or black annealed wire. Iron binding wire is widely used in construction, agriculture, packaging, and other industries. It provides strength, durability, and flexibility for applications such as securing packages, tying rebar, and fastening materials together.
These different types of wires, including black wire, loop tie wire, annealed double loop tie wire, and iron binding wire, offer solutions for various tying, bundling, and securing needs. The specific choice depends on factors such as the application, required strength, flexibility, and desired appearance.
Black Wire,Loop Tie Wire,Annealed Double Loop Tie Wire,Iron Binding Wire
Hebei Aibuer trading co., Ltd , https://www.ablehardwares.com