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Tesla giga casting gets its biggest supporter yet from legacy auto [Toyota]

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During Toyota’s announcement earlier this week, the veteran Japanese automaker announced that it was adopting “giga casting” systems for its upcoming electric vehicles. Similar to Tesla, Toyota intends to produce the car body from three main components in a modular structure, allowing for “significant component integration.”

“On the manufacturing axis, the car body will be constructed from three main components in a new modular structure. Adopting giga casting will allow significant component integration, which contributes to the reduction of vehicle development costs and factory investment,” Toyota noted.

The use of giga casting was pioneered by Tesla with the Model Y crossover. It involves the use of house-sized machines that are able to produce aluminum parts that are significantly bigger than anything traditionally used in auto manufacturing. With the system in place, a piece such as the Model Y’s rear underbody could be made with one piece instead of dozens.

This system, analysts have estimated, has likely helped Tesla achieve industry-leading profitability.

In what appears to be yet another nod to Tesla’s futuristic factories, Toyota also stated that it plans to implement a “self-propelling” assembly line, where vehicles that are being produced would essentially drive themselves through the manufacturing process. That’s an ambitious goal, and one that would likely require a lot of investment from the automaker.
 
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Why are other automakers chasing Tesla's 'Gigacasting'?​


Toyota Motor (7203.T) said this week it will adopt a technology Tesla (TSLA.O) pioneered known as "Gigacasting" as part of a strategy by the Japanese automaker to improve the performance – and lower the cost – of future electric vehicles (EVs).

Toyota is not alone in following Tesla's breakthrough.

Here's a look at Gigacasting and how the innovation is forcing automakers to scramble to match Tesla:

WHAT IS GIGACASTING?​

The Giga Press is an aluminium die-casting machine adopted by Tesla at its factories in the U.S., China and Germany. The house-sized machines are able to produce aluminium parts far bigger than anything used before in auto manufacturing.

The "giga" in the name is a nod to Tesla's convention of calling its plants "Gigafactories". Other automakers have taken to calling them "megapresses", which also can refer to smaller but still massive machines.

In operation, the press takes in a shot of molten aluminium of 80 kg (176 lb) or more into a mould where it is formed into a part, released and then quickly cooled.

Tesla has developed an aluminium alloy that also allows it to skip the heat treating traditionally used to increase the strength of the cast part.

WHAT'S THE PAYOFF?​

Typically more than a hundred individually stamped metal parts have been welded together to make a car body.

Fewer parts, lower costs and a simplified production line have contributed to Tesla's industry-leading profitability, analysts have said.

For Tesla, the use of a single component in the rear of the Model Y - its best-selling model - allowed it to cut related costs by 40%, the company has said.

In the Model 3, by using a single piece from the front and rear of the vehicle, Tesla was able to remove 600 robots from assembly, Elon Musk has said.

It can also cut a vehicle's weight – an important consideration for EVs where the battery pack alone can weigh more than 700 kg. And it has the potential to reduce waste and greenhouse emissions from a plant.

Toyota said it expected that using aluminium die-casting would eliminate dozens of sheet metal parts from assembly and reduce waste.

WHO MAKES THESE MACHINES?​

Tesla sources its presses from Italy-based IDRA, which has been a unit of China's LK Industries since 2008.

Competitors of IDRA and LK include Buhler Group in Europe, Ube (4208.T) and Shibaura Machine (6104.T) in Japan, and Yizumi (300415.SZ) and Haitian (1882.HK) in China.

The global aluminium die-casting market was worth almost $73 billion last year and is projected to top $126 billion by 2032, showed an AlixPartners analysis.

WHO'S CHASING IT?​

In addition to Toyota, General Motors (GM.N), Hyundai Motor (005380.KS) and affiliates of China's Geely – Volvo Cars, Polestar and Zeekr - are using the technology or planning for it.

Zeekr has started using massive aluminium die casts for a multi-purpose van it makes for sale in China and has said it will introduce the technology for other models.

Volvo said last year it would invest more than $900 million to upgrade its plant near Gothenburg, Sweden, to include megapress technology.
 
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