scholarly journals A low assembly cost coaxial magnetic gearbox

2016 ◽  
Author(s):  
K. Uppalapati ◽  
J. Kadel ◽  
J. Wright ◽  
K. Li ◽  
W. Williams ◽  
...  
Keyword(s):  
Assembly Cost

SiP and Module

2019 ◽  
Vol 2019 (S2) ◽  
pp. S1-S19 ◽  
Author(s):  
Rolf Aschenbrenner ◽  
Klaus Pressel ◽  
Andreas Grassmann
Keyword(s):  
Heterogeneous Integration ◽  
Assembly Cost ◽  
Functional Blocks ◽  
Material Assembly

Abstract Invited Session on HETEROGENEOUS INTEGRATION ROADMAP - SiP and Module. Outline: ** SiP Packaging Toolbox - Interconnect; Architecture; Footprint; Functional blocks; and ** Challenges and Solutions - Material, assembly, cost, standardization.

Statistical tolerance design to minimize dual-responses of APFA height deviations with tolerance cost-quality loss model

2015 ◽  
Vol 32 (5) ◽  
pp. 434-455 ◽  
Author(s):  
Wichai Chattinnawat
Keyword(s):  
Transfer Functions ◽  
Minimum Cost ◽  
Tolerance Allocation ◽  
Assembly Process ◽  
Quality Loss ◽  
Conditional Distributions ◽  
Control Plan ◽  
Content Type ◽  
Assembly Cost ◽  
Tolerance Cost

Purpose – The purpose of this paper is to apply the statistical tolerancing technique to analyze the dual responses of APFA arm height deviation with respect to next stage of disk assembly process and simultaneously optimize and allocate the required tolerance of the responses onto its components at minimum cost of manufacturing and the quality loss. Design/methodology/approach – The relationships between the dual responses of APFA heights and the geometric dimensions and tolerances of APFA components, and orientation of the assembled part with respect to disk assembly were first defined. The effects of the APFA orientation, and the component tolerances on the distributions and variations of the responses were derived and investigated in terms of resultant product/process performance, quality loss, and the cost of assembly. The tolerance cost-based objective function is then formulated as the combined manufacturing/assembly cost and the quality loss. Direct search method was used to find the best feasible tolerance solutions satisfying the required product performance at minimum cost. Findings – The constructed relationship or transfer functions of the dual responses were probabilistic depending on the orientation of part with respect to the next assembly process. The Monte Carlo simulation is empirically suitable for the computation of the conditional distributions of the responses against the first-order linear approximation of component variances. The proposed solution of tolerance control plan increases the product performances, C pm , from 0.6 to be at least 1. The proposed tolerance allocation plans will reduce the amount of rework currently as high as 5 percent to at most 0.01 percent with minimally increased assembly cost. Practical implications – This proposed methodology to design and allocate component tolerances is suitable and applicable to the APFA assembly process. The derived assembly functions of probabilistic type relating the responses to the process and component characteristics can represent the actual dynamic of assembled part better than a traditional single deterministic function developed under static concept. This presented methodology can be applied to other assembly cases where quality characteristic depends on the part dynamic. Originality/value – This research simultaneously optimized the dual APFA height deviation responses with minimum cost of tolerance and quality loss using two different conditional distributions and transfer functions of the resultant deviations generated from dynamic of APFA with respect to disk.

scholarly journals Easily fabricated ion source for characterizing mixtures of organic compounds by direct analysis in real time mass spectrometry

2017 ◽  
Vol 9 (34) ◽  
pp. 5065-5074 ◽  
Author(s):  
Kathleen T. Upton ◽  
Katherine A. Schilling ◽  
J. L. Beauchamp
Keyword(s):  
Mass Spectrometry ◽  
Real Time ◽  
Organic Compounds ◽  
Direct Analysis ◽  
Ion Source ◽  
Ambient Mass Spectrometry ◽  
Assembly Cost

The EZ-DART ion source for ambient mass spectrometry, with simplified construction, minimal assembly cost, and versatile sampling capabilities, is described.

Selective Robotic Assembly

1992 ◽  
Author(s):  
Nir Berzak
Keyword(s):  
Product Quality ◽  
High Precision ◽  
Cost Reduction ◽  
Spare Parts ◽  
Robotic Assembly ◽  
Selective Assembly ◽  
New Approach ◽  
Assembly Cost

Abstract A new approach to robotic high precision selective assembly is presented. The basis for this selective assembly is a gripper which both grips the part to be assembled along its mating planes and inspects its dimensions while gripping. One hundred percent interchangeability of spare parts is achieved by selecting the appropriate parts for inventory, during assembly. Cost reduction and the increase in product quality are shown by example.

The Assembly Design of Non-Ball Mills

2012 ◽  
Vol 605-607 ◽  
pp. 65-68 ◽  
Author(s):  
Kun Shan Li ◽  
Yang Li
Keyword(s):  
Quantitative Analysis ◽  
Ball Mills ◽  
Assembly Time ◽  
Assembly Design ◽  
Assembly Cost ◽  
Cost Reductions ◽  
Machine Parts

The purposes of assembly design (DFA) are aimed to rapidly fit certain machine parts together with the final assemble quality guaranteed. This indicates certain measurements are taken in the very initiative stages to achieve the lowest assembly cost, include quantitative analysis of products; products design optimizations and compression of assembly time. To both aspects of products assemblage capabilities and cost reductions, the DFA usually acquires the least numbers of parts also ensures the ease manufacture and assemble of the parts.

An Approach to Assembly Sequence Planning Using Simulated Annealing

2012 ◽  
Vol 457-458 ◽  
pp. 628-634
Author(s):  
Jing Zhang ◽  
Yun Sheng Yang ◽  
Shao Wei Feng
Keyword(s):  
Simulated Annealing ◽  
Energy Function ◽  
Simulated Annealing Algorithm ◽  
Graph Model ◽  
Assembly Sequence Planning ◽  
Assembly Sequence ◽  
Complex Assembly ◽  
Assembly Cost ◽  
Assembly Sequences ◽  
Annealing Algorithm

In order to solve the problem of generating and optimizing the assembly sequences of a complex assembly, the oriented-mating graph model of the assembly and the related mating matrix are created. Then an improved simulated annealing algorithm is used to solve the ASP problem. This algorithm reflects the assembly cost to an energy function associated with the assembly sequence. The energy function is iteratively minimized and occasionally perturbed by a simulated annealing until no further change in the energy occurs. Finally, a living example is given to prove the validity of the method.

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