【改写了历史：狂人马斯克的特斯拉用一个浇铸的底盘替换了 70 个零件！】
为什么特斯拉用一个底盘替换了 70 个零件：特斯拉不仅仅是重新设计了一个汽车零件。

他们重新设计了工厂。

大多数汽车的制造方式仍然与几十年来相同：冲压数十块金属板，然后在一条长长的装配线上焊接、铆接和粘合在一起。

仅在 Model 3 的后车身底部，就意味着大约有 70 个独立部件。每个人都需要自己的工具、自己的机器人站以及自己的工厂车间。每个关节也是变异蔓延的另一个机会。

特斯拉用 Gigapress 颠覆了这个剧本。

熔融铝在约 6,000 吨的力量下被射入巨大的钢模具中。几秒钟后，模具打开，一个完整的结构铸件出现——Model Y 的整个后车身底部连为一体。

它相当于汽车中注射成型的塑料玩具：无需组装 70 个小部件，而是一次性形成整个产品。

两大障碍阻止了这种情况的早期发生：
1）机器必须变得更大。
2) 传统铸造合金需要热处理才能达到完全强度。对于这种尺寸的零件，热处理会导致翘曲。特斯拉开发了自己的铝合金，从模具中出来的铝合金强度足以完全跳过热处理步骤。

这种方法现在是特斯拉“拆箱”制造愿景的基础（从 Cyber​​cab 概念来看）：并行构建大型结构模块，然后在最后将它们连接起来。

结果？更少的零件、更少的工厂占地面积、更短的周期时间，并最终降低每辆车的成本。

制造创新很少只涉及产品。这是为了降低复杂性，以便您可以同时提高质量和成本。

请观看下面的简短分解——这是对这一点为何如此重要的最清晰解释之一。

您认为还有哪些行业早就该进行这种彻底的零部件整合了？

Why Tesla Replaced 70 Parts With One Piece: Tesla didn’t just redesign a car part.

They redesigned the factory.

Most cars are still built the same way they have been for decades: stamp dozens of sheet-metal pieces, then weld, rivet, and glue them together on a long assembly line.

On the rear underbody of a Model 3 alone, that meant roughly 70 separate parts. Each one needed its own tooling, its own robot stations, and its own real estate on the factory floor. Every joint was also another chance for variation to creep in.

Tesla flipped the script with the Gigapress.

Molten aluminum is shot into a massive steel mold under ~6,000 tons of force. Seconds later, the mold opens and a single, complete structural casting emerges — the entire rear underbody of a Model Y in one piece.

It’s the automotive equivalent of injection-molding a plastic toy: instead of assembling 70 little bits, you form the whole thing in one shot.

Two big barriers kept this from happening earlier:
1) The machines had to get much larger.
2) Conventional casting alloys require heat treatment to reach full strength. On a part this size, that heat treatment causes warping. Tesla developed its own aluminum alloy that comes out of the mold strong enough to skip the heat-treatment step entirely.

This approach is now foundational to Tesla’s “unboxed” manufacturing vision (seen with the Cybercab concept): build large structural modules in parallel, then join them at the end.

Result? Fewer parts, less factory floor space, shorter cycle times, and ultimately lower cost per vehicle.

Manufacturing innovation is rarely just about the product. It’s about collapsing complexity so you can scale quality and cost at the same time.

Watch the short breakdown below — it’s one of the clearest explanations of why this matters.

What other industries do you think are overdue for this kind of radical part consolidation? http://t.cn/AXjW6Pno