蒂森克虏伯公司拼焊板生产技术与研发概述

介绍了近年来世界顶级公司汽车用拼焊板的生产现状,重点对蒂森克虏伯钢铁公司的拼焊板主要生产技术及产品品种、主要用户、市场的全球化发展战略以及该公司新研发的带卷拼焊技术进行了系统介绍.此外,还阐述了我国汽车用拼焊板生产现状,并对未来发展趋势进行了展望.     

激光拼焊汽车板的应用现状与发展前景

目前激光拼焊技术在汽车车身设计中被广泛采用。拼焊板是将几块不同材质、不同厚度、不同涂层的钢板焊接成一体的钢板,以满足零部件对材料性能及厚度的不同要求。激光拼焊技术与热冲压成形技术、液压成形技术均为超轻车体项目中重点推荐的三大技术,具有减重、提高安全性、节省材料等多项优势,为汽车用材技术发展的一大趋势。主要介绍了激光拼焊板技术的发展、特点、优势、亟待解决的问题、研究热点、应用现状以及国内市场的发展前景。     

蒂森克虏伯公司开发出带卷拼焊新技术

蒂森克虏伯公司激光拼焊板生产技术自20世纪80年代末问世以来得到了不断的发展，目前新开发的带卷拼焊技术又成功用于汽车板生产。     

蒂森克虏伯钢铁公司汽车板生产现状

详细介绍了德国蒂森克虏伯钢铁公司汽车板专业化生产的组织机构,炼钢、连铸以及热轧带钢、冷轧带钢、镀锌板、拼焊板生产的工艺装备水平及其品种现状.     

拼焊件的焊接方法及其成形性能

1前言 1967年，以TIG焊接的方式生产了一种汽车侧板，这一技术被看作重大事件。但是直到日本和欧洲汽车制造商于1985年将其用作制造汽车侧板和地面板时，这一技术才逐渐得到广泛的应用。介绍拼焊件的详细焊接方法和可成形性。     

激光拼焊板冲压成形的数值模拟研究

用 DYNAFORM 软件对拼焊板成形过程进行有限元模拟研究.建立了盒形油箱零件的有限元模型,研究分析不同厚度、不同材料拼焊板的成形及焊缝对零件成形的影响.结果表明,以真实焊缝材料性能建立的焊缝模型能够较准确地描述拼焊板成形过程中的塑性变形及应变分布情况.     

我国钢材深加工业现状及发展方向研究

随着钢铁生产工艺技术的不断发展及市场竞争的日趋激烈,钢材深加工业应运而生并快速发展.介绍了国外先进的钢铁深加工技术(拼焊板、钢结构、冷弯型钢生产技术及长线深加工技术等)的开发与应用情况,并分析了我国钢材深加工业的发展现状及前景.     

22MnB5与HC340LA/HC340/590DP激光拼焊淬火后组织与性能分析

近年来热成型钢在汽车行业被广泛引入,成为汽车轻量化解决方案的一个重要组成部分.为满足碰撞法规安全与吸能要求,激光拼焊技术等改进的热成型技术已被广泛应用,采用HC340LA、HC340/590DP分别与22MnB5薄板试样进行激光拼焊,利用GLEEBLE 3500热模拟试验机进行淬火试验,对拼焊试样淬火后组织与性能进行分析,实验结果表明:焊缝均不是淬火件的薄弱区,HC340/590DP与22MnB5搭配强度与极限延伸率过渡更为合理,研究结果对实际应用有一定的指导意义.     

焊接参数对Gr1钛板焊缝组织和性能的影响

Gr1钛板是爆炸法制金属复合板常用材料,大幅Gr1板常需进行拼焊处理。为了使拼焊后的Gr1钛板的塑性指标能够满足后续爆炸复合工艺的要求,选择不同焊接参数和送丝方式对5.5 mm厚的Gr1钛板进行拼焊,通过金相、硬度、拉伸、弯曲等对比分析,研究不同工艺参数对其焊缝组织和力学性能的影响。结果表明,Gr1板在I=90A,U=10 V,v=4.8 mm/s,不添加焊丝的自熔方式下拼焊,可以在焊缝处获得大片细小的α态晶粒组织和较好的综合力学性能,在该工艺下拼焊的Gr1钛板满足爆炸复合用钛板的使用要求。     

美国诺贝国际有限公司与武汉钢铁公司合资组建公司生产激光拼焊板

美国诺贝国际有限公司与中国第三大钢铁企业武汉钢铁公司旗下的合资子公司签订署了一份长期合资企业协议，以进入中国汽车市场生产激光拼焊板（laser—welded blanks）。这家双方公司各持一半股份的合资企业将以WISCO Noble Laser Welding Technology Co．Ltd．为名称进行运营。     

Deep Drawing of Friction Stir Welded Thin Sheet Aluminium Steel Tailored Hybrids

Friction stir welding undergoes a steep evolution in industrial applications since the invention in the early 1990s. Especially for aluminium alloys in sheet thicknesses over 2 mm a lot of applications are established, whereas a lack in knowledge about friction stir welding of thin sheets with sheet thickness less than 2 mm exists. This article deals with friction stir welding of thin sheet aluminium steel tailored hybrids and their formability. These investigations tend to close the gap of availability of friction stir welded blanks in the range of 1 mm sheet thickness and to offer new applications of this joining technology. For production of aluminium steel tailored hybrids AA5182 with a thickness of 1.2 mm and DC04 in 1.0 mm are used, the joining partners are friction stir welded in a lap joint. Different tool geometries and process parameters are performed to achieve the highest strength and elongation at fracture of the tailored hybrids. The influence of the stirring on the arrangement and distribution of both materials in the welding zone and its microstructure is analysed using light optical and scanning electron microscopy. In addition to tensile tests planar microhardness measurements help to detect the local changes of the mechanical properties in the characteristic zones of the weld seam. Tailored hybrids, which were friction stir welded with the best welding parameters in accordance to the mechanical properties of the weld seams, were used for deep drawing tests of friction stir welded thin sheet aluminium steel tailored hybrids. The maximum drawing ratio of these tailored hybrids coincides with the one of the parent material of AA5182.     

汽车拼板的激光焊接

介绍了拼板焊接的激光焊原理，工艺及焊接接头性能，同时概括了当今几大汽车生产厂家及钢铁厂薄板的激光焊焊接现状。     

Does tailoring matter? Meta-analytic review of tailored print health behavior change interventions.

Although there is a large and growing literature on tailored print health behavior change interventions, it is currently not known if or to what extent tailoring works. The current study provides a meta-analytic review of this literature, with a primary focus on the effects of tailoring. A comprehensive search strategy yielded 57 studies that met inclusion criteria. Those studies-which contained a cumulative N = 58,454-were subsequently meta-analyzed. The sample size-weighted mean effect size of the effects of tailoring on health behavior change was found to be r = .074. Variables that were found to significantly moderate the effect included (a) type of comparison condition, (b) health behavior, (c) type of participant population (both type of recruitment and country of sample), (d) type of print material, (e) number of intervention contacts, (f) length of follow-up, (g) number and type of theoretical concepts tailored on, and (h) whether demographics and/or behavior were tailored on. Implications of these results are discussed and future directions for research on tailored health messages and interventions are offered. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

2011年俄罗斯钢铁工业简介

简述了2011年俄罗斯钢铁工业发展概况,介绍了俄罗斯5大钢铁企业:北方、马格尼托哥尔斯克、新利佩茨克、车里雅宾斯克钢铁集团以及欧亚控股集团2011年的生产经营情况.     

安钢中板品种开发及对策

本文通过国内市场对钢材的需求及安阳钢铁公司的生产现状进行分析，探讨了安钢中板材品种开发所面临的问题及对策。     

Expectancy priming of smoking cessation messages enhances the placebo effect of tailored interventions.

Objective: Previous research (Webb, Simmons, & Brandon, 2005) suggested that smokers' reactions to self-help materials were more positive if they believed that the materials had been personally tailored to their individual characteristics and if they held expectancies that tailored interventions are superior to standard, or generic, interventions. The authors' objective in the current study was to replicate and extend this research by testing the efficacy expectancy priming before intervention delivery. Design: In a 2 × 2 factorial experiment, 210 smokers (M = 23 cigarettes/day) recruited from the community (62% female; 92% Caucasian; mean age = 49) were randomly assigned to 1 of 4 conditions: placebo-tailored intervention/no priming, placebo-tailored intervention/priming, standard intervention/no priming, or standard intervention/priming. The tailoring-related expectancies of participants' in the priming conditions were primed before they were presented with the respective intervention booklets. Main Outcome Measures: Content evaluations, readiness to quit smoking, cessation self-efficacy, smoking-related knowledge, and progress toward quitting (behavior changes). Assessments occurred by mail at baseline and at 1-month postintervention. Results: Similar to the earlier study, the placebo-tailored booklets produced superior evaluations and smoking-related cognitive and behavioral changes. Moreover, the pretreatment expectancy priming successfully altered participants' tailoring-related expectancies and also produced superior evaluations and outcomes. Conclusion: Findings support a causal role of tailoring-related expectancies on the efficacy of tailored interventions and suggest that interventions can be enhanced via expectancy priming. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Status and Innovation Trends in Hot Stamping of USIBOR 1500 P

Thanks to its superior mechanical properties after hot stamping, USIBOR 1500 P experiences a very rapid growth in anti‐intrusion applications of automotive structures (bumpers, doors, bodies‐in‐white). As the blank is stamped at high temperature (typically between 600°C and 800°C) and then immediately quenched in the closed forming die, the very high strength level of 1500 MPa can be achieved without shape deviation or springback, and for very complex shapes. This performance cannot currently be matched by any other cold stamped material. This paper intends to give a short overview of the current status in application of USIBOR 1500 P, with a specific focus on the thermomechanical modelling of its stamping behaviour in finite element simulation. Current innovation trends with respect to the material itself, its processing and the opportunities it offers in terms of tailored mechanical properties will be presented and discussed.     

Interpersonal and Print Nutrition Communication for a Spanish-Dominant Latino Population: Secretos de la Buena Vida.

Participants (N = 357) were randomly assigned to 1 of 3 conditions: lay health advisor (promotora) plus tailored print materials, tailored print materials only (tailored), or off-the-shelf print materials (control). The primary outcomes were calories from fat and daily grams of fiber. Secondary outcomes included total energy intake, total and saturated fat intake, and total carbohydrates. Adjusted for baseline values, calories from fat were 29%, 30%, and 30% for the promotora, tailored, and control conditions, respectively, and grams of fiber consumed were 16 g, 17 g, and 16 g. Significant Condition X Time interactions were not observed between baseline and 12-weeks postintervention. The LHA condition achieved significantly lower levels of energy intake, total fat and saturated fat, and total carbohydrates. The relative superiority of the promotora condition may derive from the personal touch achieved in the face-to-face interactions or from the women's use of print materials under the promotora's guidance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)