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Why is it difficult to break through the application of vehicle composites? Said to be a trend
Writer:admin    Released:2019-10-16 09:37:09    Type:【L】【M】【S
Summary :Boeing 787, Airbus A380, domestic C919... Civil aviation aircraft have achieved the use of lightweight materials, especially composite materials
Boeing 787, Airbus A380, domestic C919... Civil aviation aircraft have achieved the use of lightweight materials, especially composite materials

Significant results. And why is the automotive industry, which is also in need of lightweighting, why there is no big breakthrough compared to it? Headquarters in Michigan

The American Automotive Research Center in Ann Arbor has launched a new study to explore why cars are still so heavy.

The research center surveyed 44 models of materials produced in 2015 and asked the car manufacturer a question:

If they have to lose weight on the main parts of the car in the short term, how will they respond?

    The research team investigated that composite materials are an inevitable solution to car weight reduction. Jay Barron

(JayBaron) said, "If you want to lose weight on your car, you have to switch to a large-scale material, including car pillars and beams.

, stringers, etc." Automakers are also frank, if you want to lose 15% for a car, it is difficult not to rely on composite materials.

    However, the more common weight reduction methods currently used by car manufacturers are high temperature resistant plastics and reduced engine size.

    If it is necessary to reduce the weight of the car by 5%, the car manufacturer usually chooses the steel-aluminum integrated structure, such as Ford launched

All-aluminum body F-150. In turn, automotive manufacturers use modified plastics in the remaining parts to further reduce weight. But aluminum is

There is a defect in durability.

    In addition to the steel-aluminum integrated structure, magnesium can also be used in conjunction with existing steel construction facilities. But there are two problems that cause steam

Car manufacturers are not willing to do this. One is that 67% of production is concentrated in China, and potential raw material supply issues make other countries

Large-scale application by manufacturers is not feasible. The other is a substantial increase in costs.

Almost all suppliers believe that the value of carbon fiber and its composites in weight loss is unmatched by other materials. but

Yes, almost all car manufacturers agree that carbon fiber is the most difficult to operate in mass production.

Why is there such a contradiction? Because carbon fiber composites are the main material for automobile manufacturing, it means existing

Production methods need to be reinstated. For example, Ford's all-aluminum body F-150, even if it is an aluminum replacement steel, Ford needs a lot of money.

To renovate the factory. Coupled with the current modular production has become more and more common in the industry. Once a major adjustment occurs, the cost will

High enough to imagine.

Therefore, the biggest obstacle to car weight loss is that the cost of change is too great. Barron introduced "The car manufacturer said to me: ‘we

I finally developed a standardized production process. Now you want us to build a door with composite materials? This is not up to standard, so it is

In the process of disrupting. ’”

Based on this, a possible trend for the next decade is that automakers will be in key areas such as doors, hoods, front pillars and surrounds.

Introducing lighter materials, but the core will still be dominated by steel.
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