The aluminum tube with rectangle section can be produced by two-pass drawing process
including non-plug and with-plug drawing. It is an effective method to study the deforming
mechanisms by simulation, based on which the section varying of two-pass drawing got schemed and
the relevant dies with reasonable dimensions got designed. The dynamics model and elasto-plastic FE
model of the non-plug and with-plug drawing were established based on FEM software, then the
simulation was performed. The sizing section of drawing die got optimized with angle β=178°, which
eliminated instability. The influence of different semi-die angle 2 a on drawing load was researched,
and a proper value of 2 a and 1 a was found. The touch boundary and touch-stress distribution of
transitional drawing were achieved. Furthermore the residual stress and spring-back strain
distribution after final drawing were achieved, which contributes to modifying the dimensions of
rectangle sizing section.
In order to reveal the forming laws,eliminate the forming defects appearing in the typical aluminum alloy web-rib parts,two types of preforms have been used in the final forging with numerical simulation software.Based on the simulation,the comparisons of metal flow,effective strain distribution are obtained between the two types of preforms applied in the final forging process,the forming laws of a symmetrical rib-web component have been obtained ,and the forming mechanism of defects often happened in web- rib parts also has been analyzed,the relationship between the fillet radius and metal flow velocity/ final load was obtain. The results show that the fiber breaking,vortex could be avoided,a high forming quality of rib-web part could be gained by the method of using the thin web-high rib preform in finish-forging.
This case study explores the relationships between the marketing place and branding promotion strategy of Singfujia Real Estate. Building strong brands is one of the most important goals of product and brand management (Esch, Langner, Schmitt, & Geus, 2006). The research conducted in qualitative study applying in interview with the manager and the employees of the Singfujia Real Estate. The result shows that the company can create advantage by adopting strategies marketing, customer satisfaction also can be capture by using 7Ps model, company can optimize the brand through promotion and place marketing.
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