钢制安全网 Steel Safety Net

ArcelorMittal’s patented ablation technology is favoured by OEMs across the world for its suitability in safety-critical applications

安赛乐米塔尔的专利消融技术因其在关键安全应用领域的适用性而受到全球主机厂商的青睐

If the AlSi coating is not removed before welding, aluminium can pollute the weld and lead to part failure (left). Partial ablation ensures a strong and durable weld (right)

如果在焊接前没有去除铝硅涂层，铝会污染焊缝而导致零件失效（左）。部分消融确保焊缝坚固耐用（右）

ArcelorMittal’s patented partial ablation technology was developed to ensure that hot-stamped laser-welded blanks (LWBs), made from the latest press-hardenable steels (PHS), are as safe as possible. Although it was first used industrially in 2007, the patented partial ablation process is proving more popular than ever with carmakers and has led to dramatic improvements in lightweighting and safety. By 2020, ArcelorMittal expects the technology will have been used to produce more than 70 million PHS LWBs using ablation technology at locations around the world.

安赛乐米塔尔的部分消融专利技术是为确保由压力硬化钢(PHS)制成的热冲压激光拼焊板(LWBs)的安全性能而开发的。虽然自2007年才首次工业应用，但事实证明，部分消融专利工艺极受汽车制造商的推崇，并可在轻量化和安全性方面带来显著改善。预计到2020年，全球各地使用该部分消融技术生产的热冲压激光拼焊板将超过7000万片。

PHS is typically supplied with an aluminium-silicon (AlSi) coating that protects the underlying steel during thermal treatments and prevents corrosion. ArcelorMittal’s patented partial ablation process removes a thin strip of the AlSi coating on the edge of the blanks before they are laser-welded together. If the coating is not removed before laser welding, the aluminium it contains can weaken the weld and cause the part to fail. Around 99% of the PHS LWBs made today utilise AlSi coated steels.

PHS通常会带有铝硅(AlSi)涂层，它能在热处理过程中保护钢基并防止腐蚀。安赛乐米塔尔的部分消融专利工艺，会在激光拼焊之前，去除板料边缘一层薄薄的铝硅涂层。如果在激光拼焊前没有去除涂层，涂层中含有的铝会削弱焊缝，导致零件失效。目前生产的热冲压激光拼焊板中，约99%使用铝硅涂层的钢。

Demand for partially ablated LWBs has grown dramatically over the last five years. In 2018, ArcelorMittal produced over 10 times more ablated LWBs than in 2013.

过去五年来，对部分消融激光拼焊板的需求急剧增长。2018年，安赛乐米塔尔生产的部分消融激光拼焊板总量是2013年的10倍以上。

The PHS LWBs using ablation technology are produced in America, Europe and Asia, and ArcelorMittal continues to make significant investments in its facilities to ensure it can keep up with demand from the world’s carmakers.

采用消融技术的热冲压钢激光拼焊板在美国、欧洲和亚洲均有生产，安赛乐米塔尔继续大力投资工厂，以确保能够满足全球汽车制造商的需求。

A Safety Game-Changer

安全革新者

The use of press-hardenable steel laser-welded blanks in modern vehicles began to grow rapidly from 2009, largely in response to global emissions regulations. In 2013, partially ablated LWBs were used to manufacture the first single-piece hot-stamped door ring made entirely from PHS. The solution was first deployed on the 2014 Honda Acura MDX, and led to weight savings of 20% compared to a conventional door assembly. The Honda Acura MDX went on to win numerous car industry awards, which recognise the pioneering manufacturing process and safety improvements of this steel solution. These include the 2014 AMM Award for Steel Excellence (Best Innovation: Process); two 2014 PACE Awards (Innovation Partnership and Manufacturing Process and Capital Equipment); and the 2014 CLEPA Award (First place in the ‘Safe’ category).

从2009年起，主要受全球排放法规的影响，热冲压钢激光拼焊板在现代汽车上的使用开始迅速增长。2013年，首个完全由热冲压钢制成的一体式热冲压门环使用部分消融技术制成。该解决方案首次应用于2014年本田讴歌MDX车型，相较传统的车门总成来说，减重20%。本田讴歌MDX车型后来赢得了许多汽车行业的奖项，这种钢材解决方案在制造工艺和安全方面的开创性改善得到广泛认可。其中包括2014年美国金属市场（AMM）钢铁卓越奖（最佳创新：工艺）；2014年两次汽车供应商杰出贡献（PACE）奖（创新伙伴关系、制造过程和资本设备）；2014年欧洲汽车供应商协会（CLEPA）奖（安全类第一名）。

The single-piece hot-stamped door ring has now been adopted by many OEMs including Chrysler and Dodge. The 2017 Chrysler Pacifica received the Cars.com Best of 2017 award, and the US New Cars Best Minivan for the Money award.

一体式热冲压门环现已被包括克莱斯勒和道奇在内的许多主机厂应用。2017年克莱斯勒Pacifica获得了Cars.com 2017年度最佳车型奖，以及美国新车最佳性价比小型厢式旅行车奖。

The door-ring concept has been adapted to include a laser-welded inner and outer front door ring system. The first production vehicle to use the new inner and outer door ring blanks will be the 2019 Honda Acura RDX. This latest development has been named as a finalist for the 2019 PACE Award. At last year’s WCX18: SAE World Congress Experience in Detroit, the partners unveiled the world’s first outer and inner door ring system to better balance strength and performance while removing additional weight from the vehicle.

门环的概念已应用于激光拼焊内前门环和外前门环系统。首款使用新的内外门环方案的将是2019款本田讴歌RDX。这一最新的设计已提名入围2019年PACE奖。去年在底特律举行的WCX - SAE 2018全球汽车年会，团队推出了世界首例内外门环系统，以更好地平衡强度和性能，同时减轻车辆的额外重量。

Using ArcelorMittal’s patented ablation technology, a laser beam is used to remove the aluminium-silicon layer on the top of the press hardenable steel. The intermetallic layer is preserved during the operation to ensure corrosion resistance. After ablation, two or more blanks are welded together to form a single PHS laser-welded blank (LWB). PHS LWBs are then hot stamped to form the part. ArcelorMittal’s patented ablation technology removes the AlSi coating while preserving the intermetallic layers which sits between the coating and the underlying steel.

利用安赛乐米塔尔的专利消融技术，利用激光束去除热冲压钢表面的铝硅层。金属间合金层在加工过程中被保留，以确保耐腐蚀性。消融后，将两个或多个板料焊接在一起，形成一体式热冲压钢激光拼焊板 (LWB)。热冲压钢激光拼焊板后经热冲压制成零部件。安赛乐米塔尔的专利消融技术去除了铝硅涂层，同时保留了涂层和钢基之间的金属间层。

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