In product concept design, not only designers with professional CAD skills, but also final customers take part in the design and evaluation of product shape styling. Because customers usually lack surface modelling ba...In product concept design, not only designers with professional CAD skills, but also final customers take part in the design and evaluation of product shape styling. Because customers usually lack surface modelling background and are not familiar with concrete operations of commercial CAD systems, it is difficult for them to express their change intentions of product shape through professional CAD tools if they are not satisfied with the current shape design. This paper puts forward a method for creating, dragging and manipulating constraint and load represented in form of icon entity in interactive sculpting of product shape in virtual environment. The method supports customers manipulation of sculpting constraints or loads on sculpting shapes in virtual reality interaction to control the deformation of product shape. Constraints management based on icon entity is similar to spline lofting operation that is familiar to engineers, so users do not need to know surface details or have any professional knowledge of surface modelling, by only using their physical and engineering experience, they can manipulate the sculpting of product shape intuitively.展开更多
CARVED lacquerware is a unique Chinese handicraft made by applying many layers of natural lacquer on bases of various shapes and then carving designs on the layers of lacquer with different types of knives. Different ...CARVED lacquerware is a unique Chinese handicraft made by applying many layers of natural lacquer on bases of various shapes and then carving designs on the layers of lacquer with different types of knives. Different from other decorative lacquerware, the coating of carved lacquer has dozens or even hundreds of layers. For some large items, the process of lacquering alone is time consuming and often takes months or even a year to finish, that is why this craft is often called sculpting with time.展开更多
The Songshan-Hanrong African Art Collection Museum recently opened its doors to the public in Changchun City,northeast China’s Jilin Province.The museum boasts Makonde art from East Africa,with 12,000 pieces of exqui...The Songshan-Hanrong African Art Collection Museum recently opened its doors to the public in Changchun City,northeast China’s Jilin Province.The museum boasts Makonde art from East Africa,with 12,000 pieces of exquisite African wood carvings and paintings donated by Li Songshan and his wife Han Rong on display.Li internationally is a significant collector of Makonde art.He shares his story with ChinAfrica.展开更多
Electron beam surfi-sculpt is a new metal surface processing technology,which is widely used in the areas of materials surface treatment,composite materials manufacturing,and so on.In this paper,comeld technology,whic...Electron beam surfi-sculpt is a new metal surface processing technology,which is widely used in the areas of materials surface treatment,composite materials manufacturing,and so on.In this paper,comeld technology,which was an application technology of electron beam surfi-sculpt during composite materials area,was introduced.And tensile experiments results and failure forms of Ti6Al4V/Carbon fibre single step joints were compared with different joining methods,such as slick embedding,adhesive bonding,riveting and comeld.It was found that comeld joint had more advantage of tensile property than other joining methods.At the same time,tensile process of comeld joint was analyzed with numerical simulation,and key factors of protrusions influenced tensile property were obtained,which was of importance to structure design and joint property improvement.展开更多
The functional properties of materials can be enhanced using surface features,for instance;to improve the thermal properties of heat exchangers.The development of the laser Surfi-Sculpt process over the past decade ...The functional properties of materials can be enhanced using surface features,for instance;to improve the thermal properties of heat exchangers.The development of the laser Surfi-Sculpt process over the past decade has resulted in a technology capable of producing a wide variety of features in metallic substrates.Furthermore,the potential for producing similar features in polymeric and ceramic substrates also exists.Recently the potential for utilizing high power focused laser beams to produce surface features using this process has been demonstrated.This paper details the results of recent trials performed with a 200 Yb-fibre laser and a galvanometer driven beam scanner for producing surface features using the Surfi-Sculpt process.A compact,cheap,easily robotically automated,laser Surfi-Sculpt machine,being able to operate at atmospheric pressure may have potential in a range of industry sectors.展开更多
基金Project supported by the National Basic Research (973) Program (Nos. 2004CB719402 and 2002CB312106) of China, and the National Natural Science Foundation (Nos. 50305033 and 60375020) of China
文摘In product concept design, not only designers with professional CAD skills, but also final customers take part in the design and evaluation of product shape styling. Because customers usually lack surface modelling background and are not familiar with concrete operations of commercial CAD systems, it is difficult for them to express their change intentions of product shape through professional CAD tools if they are not satisfied with the current shape design. This paper puts forward a method for creating, dragging and manipulating constraint and load represented in form of icon entity in interactive sculpting of product shape in virtual environment. The method supports customers manipulation of sculpting constraints or loads on sculpting shapes in virtual reality interaction to control the deformation of product shape. Constraints management based on icon entity is similar to spline lofting operation that is familiar to engineers, so users do not need to know surface details or have any professional knowledge of surface modelling, by only using their physical and engineering experience, they can manipulate the sculpting of product shape intuitively.
文摘CARVED lacquerware is a unique Chinese handicraft made by applying many layers of natural lacquer on bases of various shapes and then carving designs on the layers of lacquer with different types of knives. Different from other decorative lacquerware, the coating of carved lacquer has dozens or even hundreds of layers. For some large items, the process of lacquering alone is time consuming and often takes months or even a year to finish, that is why this craft is often called sculpting with time.
文摘The Songshan-Hanrong African Art Collection Museum recently opened its doors to the public in Changchun City,northeast China’s Jilin Province.The museum boasts Makonde art from East Africa,with 12,000 pieces of exquisite African wood carvings and paintings donated by Li Songshan and his wife Han Rong on display.Li internationally is a significant collector of Makonde art.He shares his story with ChinAfrica.
基金Project50975268,supported by the National Natural Science Foundation of ChinaProject2008ZE25010,supported byAeronautical Science Foundation of China
文摘Electron beam surfi-sculpt is a new metal surface processing technology,which is widely used in the areas of materials surface treatment,composite materials manufacturing,and so on.In this paper,comeld technology,which was an application technology of electron beam surfi-sculpt during composite materials area,was introduced.And tensile experiments results and failure forms of Ti6Al4V/Carbon fibre single step joints were compared with different joining methods,such as slick embedding,adhesive bonding,riveting and comeld.It was found that comeld joint had more advantage of tensile property than other joining methods.At the same time,tensile process of comeld joint was analyzed with numerical simulation,and key factors of protrusions influenced tensile property were obtained,which was of importance to structure design and joint property improvement.
文摘The functional properties of materials can be enhanced using surface features,for instance;to improve the thermal properties of heat exchangers.The development of the laser Surfi-Sculpt process over the past decade has resulted in a technology capable of producing a wide variety of features in metallic substrates.Furthermore,the potential for producing similar features in polymeric and ceramic substrates also exists.Recently the potential for utilizing high power focused laser beams to produce surface features using this process has been demonstrated.This paper details the results of recent trials performed with a 200 Yb-fibre laser and a galvanometer driven beam scanner for producing surface features using the Surfi-Sculpt process.A compact,cheap,easily robotically automated,laser Surfi-Sculpt machine,being able to operate at atmospheric pressure may have potential in a range of industry sectors.
