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
The ability to control the structure of a surface offers benefits in a wide range of aerospace applications.A novel EB (Electron Beam) materials processing technology developed at TWI,Surfi-Sculpt,addresses this nee...The ability to control the structure of a surface offers benefits in a wide range of aerospace applications.A novel EB (Electron Beam) materials processing technology developed at TWI,Surfi-Sculpt,addresses this need by using an electron beam to generate precisely defined textured surfaces.Surfi-Sculpt offers improved mechanical keying with adjoining parts and consequently has generated interest as a preparation technique for surface coatings and for the joining of composite to metal.It has the potential to create customised aerodynamically and hydrodynamically enhanced surfaces and appears suitable for the manufacture of novel bearing and seal surfaces.The Surfi-Sculpt process has also showed promise in increasing the efficiency of heat exchange surfaces.This paper describes the background of the Surfi-Sculpt process and showcases a range of surfaces that have been produced with the technique.The results of a range of feasibility studies are presented to demonstrate the potential of the technology within the aerospace展开更多
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.
文摘The ability to control the structure of a surface offers benefits in a wide range of aerospace applications.A novel EB (Electron Beam) materials processing technology developed at TWI,Surfi-Sculpt,addresses this need by using an electron beam to generate precisely defined textured surfaces.Surfi-Sculpt offers improved mechanical keying with adjoining parts and consequently has generated interest as a preparation technique for surface coatings and for the joining of composite to metal.It has the potential to create customised aerodynamically and hydrodynamically enhanced surfaces and appears suitable for the manufacture of novel bearing and seal surfaces.The Surfi-Sculpt process has also showed promise in increasing the efficiency of heat exchange surfaces.This paper describes the background of the Surfi-Sculpt process and showcases a range of surfaces that have been produced with the technique.The results of a range of feasibility studies are presented to demonstrate the potential of the technology within the aerospace
基金National Natural Science Foundation of China(50505019,50935008,50975268)New Century Excellent Talents in University(NCET-07-0503)Zhejiang Provincial Scientific Research Project(2009C21019)
