Assignment First

加拿大代写被抓:焊接工艺存在的一些缺陷

在航空航天工业中,重点是创造成本高、节能的制造和焊接工艺(Hesselgreaves, 2001)。作为研究背景介绍部分,该行业正专注于成为运营效率的背景下制造业的翼肋和很大一部分的翼肋翼因此成为总面积的重量集中在(Vairis &霜,1998)。由于原钢坯采用的是单一的固体钢坯,在很大的损耗下会被加工掉,所以这里引入了高效率的问题。焊接技术的形式也造成了浪费(Vairis & Frost, 1998)。例如,在常规工艺中引入了焊接缺陷的形式。

加拿大代写被抓:焊接工艺存在的一些缺陷

在传统的焊接工艺中,大部分的缺陷都是由于工艺的不当使用而造成的。航空航天及相关工业中发现的一些主要缺陷是焊接不当。在某些情况下,存在缺陷或不连续,对焊接质量构成了挑战。孔隙、夹杂物、熔透问题、焊缝轮廓、裂纹和其他表面损伤问题。这对整个焊缝的完整性和质量提出了挑战。因此,增加强度和节点表面结构的目的在这里受到了挑战。在气孔率较高的地方,在凝固的焊缝中存在较多的气孔。

加拿大代写被抓:焊接工艺存在的一些缺陷

In the aerospace industry, the focus is on creating manufacturing and welding processes that are very cost and energy efficient (Hesselgreaves, 2001). As presented in the research background section, the industry is focused on becoming operationally efficient in the context of manufacturing of its wing ribs and the wing ribs that are a significant portion of the weight of the total wing hence become an area to focus on (Vairis & Frost, 1998). High inefficiency concerns are introduced here as the original billet used which is a single solid one would get machined off in much wastage. The form of welding technology also contributes to the wastage (Vairis & Frost, 1998). Consider for instance, the forms of welding defects are introduced in the conventional processes.

加拿大代写被抓:焊接工艺存在的一些缺陷

In the conventional welding processes, most of the defects observed are because of the improper application of the process. Some major defects noticed in the aerospace and associated industries are improper welds. In some situations, there are defects or discontinuities that challenge the quality of welding. Porosity, inclusion, fusion penetration concerns, weld profile, cracks and other issues of surface damage are present. This challenges the integrity and quality of the entire weld. The very purpose of adding strength and joint surface structure is hence challenged here. Where there is a high level of porosity, and then there are much gas pores that are found in the solidified weld bead.