Micro assembly involves the assembly of micronsized devices. Given the complexity of this domain, the role of virtual environments becomes important as they provide a basis to propose and compare assembly alternatives virtually prior to physical assembly. This paper proposes an integrated approach which includes the use of virtual reality-based assembly environments that interface with physical...

Compliant assemblies are widely used in automobiles and airplanes etc. In order to simplify the complex assembly sequence planning problem of compliant assemblies involving dimensional variation caused by deformation, a two-step assembly sequence planning method is proposed in this paper. Meanwhile, an example of a wingbox assembly is used to explain the principle of the method. In the first st...

Historically, Design For Assembly (DFA) has always been a reactive tool, most often carried out on products in production and, at best, late on in the product introduction process. Thus, a more proactive approach is required. This paper proposes the use of an assembly sequence model as the focus of such a computer-based DFA tool, which would support the development of CAD models and infer or ex...

The concept of Design for Assembly (DFA) assure cost effective assembly process by minimizing the assembly efforts. Part count reduction is one of the primary objective of DFA, which reduces the number of assembly levels and assembly tooling. However reducing part count with modified part geometries do not allow to follow the same assembly sequence that of used earlier. In this contest a framew...

This paper presents an integrated assembly and motion planning system to recursively find the assembly sequence and motions to assemble two objects with the help of a horizontal surface as the supporting fixture. The system is implemented in both assembly level and motion level. In the assembly level, the system checks all combinations of the assembly sequences and gets a set of candidates. The...

Automatic assembly planning is recognized as an important tool for achieving concurrent product and process development thus reducing manufacturing costs. It plays an important role in designing and planning the assembly systems. In order to recommend a good sequence of assembly operations, the process planner needs to generate all such feasible sequences. In this paper, the representation of t...

Sequence planning generation is an important problem in assembly line design. A good assembly sequence can help to reduce the cost and time of the manufacturing process. This paper focuses on assembly sequence planning (ASP) known as a hard combinatorial optimization problem. Although the ASP problem has been tackled via even more sophisticated optimization techniques, these techniques are ofte...

A technique for shape-selective directed assembly of anisotropic, deformable, chemically-identical microcomponents onto patterned rigid templates based on shape and size differences is modeled and demonstrated. The assembly method not only controls the selective placement of the components, but also aligns the components with the assembly sites. Unlike the assembly of isotropic (spherical) micr...

A generalized Monte Carlo simulation method is presented for tolerance analysis of mechanical assemblies with small kinematic adjustments. This is a new tool for assembly tolerance analysis based on vector-loop-based assembly models with kinematic assembly constraints. Methods have been developed for simulating both closed loop and open loop assembly constraints as well as over-determined assem...