6A01-T5 aluminum alloy and SUS301L-DLT austenitic stainless steel sheets were welded by a laser-cold metal transfer (CMT) hybrid welding-brazing method with ER5183 filler wire. We researched the weld forming, intermetallic compounds, and mechanical character, which are influenced by laser power, wire feeding speed, and welding speed. Well-formed joints with uniformly distributed interface layers were obtained under certain parameters. The spreading and wetting distance on the steel upper surface increased initially and then decreased as the laser power increased, and increased progressively as the wire feeding speed increased or welding speed decreased. There were both Fe2Al5 and Fe4Al13 in the interfacial intermetallic compounds (IMCs) layer. The thickness was controlled to within 2.0–6.9 µm. The thickness of the IMCs layer increased as the heat input increased; however, the increasing rate decreased gradually. The tensile strength of the joints was not only completely dependent on the thickness of the IMCs, but also on the spreading and wetting distance on the steel surface. The highest tensile strength could reach up to 188.7 MPa, which is about 77.1% of that of the base aluminum alloy. The tensile sample fracture occurred at the IMCs layer, and regional metallurgical bonding happened in the interface layer.
People never cease to seek order. Previous research has shown that there are two ways to achieve control over the functioning of society. The first approach, known as the Newtonian paradigm, is a top-down response to the complexity of state governance through a hierarchical form of organization, integrated functional roles, and command-and-control mechanisms. The second approach addresses the ineffectiveness of all-powerful governments by building self-organizing, self-synergizing, and dynamically changing governance networks. With the development of information technology, the efficiency of both approaches has increased, and managers have tended to use both to simplify the complexities of national governance. However, this paper suggests that we should be wary of falling into a Hegelian order that exists only conceptually, a harmonious order that eliminates contradictions, details, and complexity. This desire for orderliness and fear of uncertainty has led to our worship of grand theories and preference for conspiracy theories. Finally, this illusion of orderliness produces tables-technocrats who focus on theoretical problem solving. They believe that technological solutions to all social problems can be found if new technologies are constantly developed and more complete information is constantly available. But most people believe that tables are the means to organize information in an efficient and standardized way, which leads to the incomprehensible parts not being recorded and computed through tables.
With the proposal of “smart manufacturing” and “supply-side structural reform”, the core of enterprise competition has gradually transitioned from products to supply chain competition. More and more enterprises realize that the dynamic mesh supply chain with digitalization + intelligence as the core replaces the traditional linear supply chain and becomes a more appropriate party with the market. With Huawei as the primary research object, this paper explores the basic methods of digital and intelligent supply chain transformation from the six aspects of production planning, digital sales, building logistics parks, process learning, order signing, and supply chain collaboration, clarifies the advantages of digital and intelligent supply chain data analysis and information transmission, and expects to form a systematic method that can be referenced.
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