Through my website, someone from a manufacturing company asked how to calculate thinning in a sheet metal part made from 2mm thick high strength steel. My response: First, I assume the nominal or expected thickness is 2mm. But this is just the aim thickness. The steel mill is allowed to ship product that has some deviation from this gauge – maybe 1.85mm to 2.15mm as an example. So you [...]
2013 Honda Accord body structure is made of >55% high strength steel with tensile strengths starting at 440MPa. Of this, >17% is ultra high strength steel, with tensile strengths of 780MPa, 980MPa, and a martensitic grade 1500MPa. This 2013 model represents the first use of UHSS in the Accord lineup. In addition, the subframe has steel and aluminum components that are joined via friction stir welding. http://www.honda.com/newsandviews/article.aspx?id=6825-en http://www.autofieldguide.com/articles/honda-accord-the-ninth-generation# -Danny [...]
The next meeting of the National Research Council (NRC) Committee on Fuel Economy of Light-Duty Vehicles, Phase 2 will be a lightweighting workshop focused on lightweighting, mass reduction and their impact on fuel economy. On the agenda for the meeting that will be held on February 12-13, 2013 in Ann Arbor, Michigan are representatives from the steel, aluminum, composites, and carbon fiber industries. Agenda: http://www8.nationalacademies.org/cp/meetingview.aspx?MeetingID=6475&MeetingNo=5 Registration: http://www8.nationalacademies.org/EventRegistration/public/Register.aspx?event=70292DDD Info: http://www.cargroup.org/?module=News&event=View&newsID=40 -Danny Schaeffler http://www.EQSgroup.com http://www.Learning4M.com [...]
Currently, around half of China’s total steel capacity is owned by the 10 biggest steel firms; the government aims to bring this to 60% by 2015. Also by 2015, targets call for 90% of automobile production and 90% of aluminum production to be done by the 10 largest firms in their respective industries. Furthermore, steel mills will not be permitted to build new capacity in 47 large cities, including [...]
In one of the first uses of AHSS for automotive skin panels, POSCO is supplying Hyundai with an exposed quality advanced high strength steel with 490 MPa minimum tensile strength. Hyundai was able to reduce the mass of the door by 7%, since this higher strength steel allowed for use of a thinner sheet while maintaining dent resistance. http://www.posco.co.kr/homepage/docs/eng2/jsp/prcenter/news/s91c1010025v.jsp?idx=2103
