Hot Isostatic Pressing: HIP’17最新文献

{"title":"Tailor-Made Net-Shape Composite Components by Combining Additive Manufacturing and Hot Isostatic Pressing","authors":"Sebastian Rudolf Riehm, F. Petzold, A. Friederici, A. Kaletsch, S. Wieland, C. Broeckmann","doi":"10.21741/9781644900031-27","DOIUrl":"https://doi.org/10.21741/9781644900031-27","url":null,"abstract":". A promising production route for high quality tailor-made parts can be established by combining Additive Manufacturing (AM) and Hot Isostatic Pressing (HIP): By using a numerical simulation routine, the shape change during HIP can be controlled. These shape-controlled parts are built by Laser Powder Bed Fusion (L-PBF) and consolidated by HIP. After HIP, they exhibit a net-shape geometry that requires only little or even no post-processing at all. In this study, open thin-walled capsules are manufactured by L-PBF, filled conventionally with metal powder, evacuated and sealed and hot-isostatically pressed. Using this processing route, it is possible to combine different materials for the capsule and the powder filling. If capsule and bulk material are identical, the expensive removal of the capsule after HIP can be omitted. By using two different powders, it is possible to produce composite components with a core of high strength and toughness and a wear- or corrosion-resistant surface layer, offering an alternative and competitive production route to conventional HIP cladding. Here three materials are investigated in different combinations: austenitic stainless steel AISI 316L (DIN X2CrNiMo17-13-3), martensitic tool steel AISI L6 (DIN 55NiCrMoV7) and the wear resistant high carbon steel AISI A11 (DIN X245VCrMo8-5-1). A number of technical challenges need to be addressed: the production of dense, thin-walled capsules by L-PBF; L-PBF of carbide rich steels; and controlling the diffusion between corrosion resistant steel and carbon steel. The success of the new process route is demonstrated by metallographic and geometrical investigations.","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"07 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127195898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient Modeling of PM HIP for Very Large NNS Parts (up to 2.5 Meter Diameter) and Key Physical, Material and Technological Parameters to Control Dimensional Scattering in a 15 mm Range","authors":"","doi":"10.21741/9781644900031-28","DOIUrl":"https://doi.org/10.21741/9781644900031-28","url":null,"abstract":"","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126404051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exhaust Valve Spindles for Marine Diesel Engines Manufactured by Hot Isostatic Pressing","authors":"A. Lapina, H. Hoeg, J. Knudsen, T. Berglund, Rune Møller, J. Hattel","doi":"10.21741/9781644900031-14","DOIUrl":"https://doi.org/10.21741/9781644900031-14","url":null,"abstract":". The exhaust valve spindle is one of the most challenging components in the marine two-stroke diesel engine. It has to withstand high mechanical loads, thermal cycling, surface temperatures beyond 700 ° C, and molten salt induced corrosion. Powder metallurgy gives the opportunity of improving the component using materials not applicable by welding or forging. Therefore exhaust valve spindles have been produced by Hot Isostatic Pressing (HIP) with a spindle disc coating of a Ni-Cr-Nb alloy that cannot be manufactured by welding or forging. This paper presents the service experience gathered by MAN Diesel & Turbo in a number of service tests on ships (up to 18000 running hours): corrosion and degradation phenomena in the spindles produced by HIP are presented and compared with the performance of state-of-the-art exhaust valve spindles. The macroscopic geometrical changes experienced by the spindles are studied by means of Finite Element Method (FEM) calculations and strategies for further development of the component are outlined.","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133525713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Developments of HIP Equipment in JAPAN","authors":"","doi":"10.21741/9781644900031-13","DOIUrl":"https://doi.org/10.21741/9781644900031-13","url":null,"abstract":"","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121838247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HIP Processing of Improved Tooling Materials for High-Productivity Hot Metal Forming Processes","authors":"M. Gauthier, G. D'amours, F. Bernier","doi":"10.21741/9781644900031-12","DOIUrl":"https://doi.org/10.21741/9781644900031-12","url":null,"abstract":"Much work has been carried out in the last decade on the development of high performance alloys to reduce vehicle weight. These alloys are often characterized by low roomtemperature formability. A variety of hot forming processes (hot stamping, hot extrusion and high-pressure die casting) are thus being used or adapted for these alloys. The final mechanical properties, shape complexity and production cost of parts made using these processes will be closely related to mold/die thermal and mechanical performance. Hot work tool steels generally have the required mechanical properties and durability to meet hot-processing requirements but have low thermal conductivity. The stringent low processing cost and high-volume production requirements of the automotive industry compel part producers to find ways to shorten unit production times at equivalent product quality. In order to meet the processing requirements of advanced alloys and transfer heat more rapidly, the tooling should thus have a higher thermal conductivity than the standard tool steel dies currently in use. The aim of this work is to optimize die properties to improve heat transfer kinetics during part shaping, thus providing an increase in efficiency and productivity for automotive metal part manufacturing. Hot Isostatic Pressing (HIP) has been used to clad a conformal-cooled copper core with a layer of either hot-work tool steel or High-Thermal Conductivity (HTC) composite material designed at NRC. Properties and performance of these systems are compared with those of standard tool materials to demonstrate the practical potential for future development and optimization of advanced tooling. Introduction. A promising way to manufacture structural automotive components using high strength AA7xxx aluminum alloy sheets is through the hot stamping process. The process itself is not new and is currently used in production with boron steel sheets. Rana et al. [1] provides different process details with boron steel and the average processing time is about 7 min for each part. For AA7xxx aluminum alloy sheets, the hot stamping processing sequence can be summarized as follows: 1) a blank sheet is heat treated to put the alloying elements into solid solution, 2) the blank is rapidly transferred to the press, 3) the punch is partially closed to shape the part and 4) the punch is completely closed to quench the shaped part and prepare the alloy for precipitation 5) the part is removed from the press and artificially aged to reach high mechanical strength. The hot stamping process with aluminum is similar to steel except that the solution heat treatment step is longer and aluminum's thermal conductivity is higher. During the last few years, aluminum alloys for hot stamping have attracted the interest of many scientists. Quenching rate effects for AA7xxx alloys have been analyzed by Keci et al. [2] and Kumar et al. [3]. High temperature mechanical behavior and high temperature formability analysis and m","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131786154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HIP Technology Enables Ceramic Manufacturers to Control Material Properties and Increase Productivity","authors":"","doi":"10.21741/9781644900031-4","DOIUrl":"https://doi.org/10.21741/9781644900031-4","url":null,"abstract":"","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129972662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TeraPi – A 3.5-Meter Diameter Hot Zone Unit Enables HIPing of Large Components","authors":"","doi":"10.21741/9781644900031-26","DOIUrl":"https://doi.org/10.21741/9781644900031-26","url":null,"abstract":"","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128224093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Processing Parameters on Intermetallic Phase Content and Impact Toughness for Super Duplex Alloy PM HIP Sandvik SAF 2507™","authors":"","doi":"10.21741/9781644900031-18","DOIUrl":"https://doi.org/10.21741/9781644900031-18","url":null,"abstract":"","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"18 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132738790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toughness of Duplex Steel Produced by PM-HIP","authors":"","doi":"10.21741/9781644900031-23","DOIUrl":"https://doi.org/10.21741/9781644900031-23","url":null,"abstract":"","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125171628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HIP Process of a Valve Body to Near-Net-Shape using Grade 91 Powder","authors":"","doi":"10.21741/9781644900031-8","DOIUrl":"https://doi.org/10.21741/9781644900031-8","url":null,"abstract":"","PeriodicalId":202011,"journal":{"name":"Hot Isostatic Pressing: HIP’17","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129540700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}