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Bronze sintering profile used in experiments 

Bronze sintering profile used in experiments 

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Article
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Selective Inhibition Sintering of metal alloys (SIS-metal) has been proven effective in the additive manufacture (AM) of low resolution bronze parts. Recent advancements in the use of a high-precision inkjet print head represented an order of magnitude improvement in SIS-metal resolution. However, the fabrication of complex three-dimensional metall...

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Context 1
... completion of inhibitor deposition, the green part was sintered in a programmable, high temperature Neytech Centurion Qex porcelain furnace. Sintering takes place in a vacuum environment. The sintering profile previously used in the SIS-metal process ( Fig. 3) was based on prior research [8] and therefore served as a good basis of comparison for this study. A 25 • C/min ramp rate was used up to 120 • C and the temperature was held constant there • C for 1 h to remove excess water. The furnace was then ramped again at the same rate up to the sintering temperature of 790 • C and held there ...
Context 2
... research suggested a hatching scheme in which an inhibited base is printed in the first layer. To clarify, inhibitor solution is deposited on the entire platform for the initial layer. The entire part negative is filled with inhibitor (Fig. 3c). This hatching scheme is simple to implement and allows for ease of post-processing in that there is direct access to inhib- ited regions for removal after sintering. However, the large amount of waste is a significant drawback to this hatch- ing scheme. There is currently no cost-effective method for recycling metal powder that has ...

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Citations

... Khoshnevis et al. [9] developed an Alpha selective inhibition sintering machine and characterized the process parameters of the machine by fabricating bronze parts and studying their quality features. In addition, Petros et al. [12] developed a -SIS machine that fabricates metallic products. Torabi et al. [13] introduced an SIS metal machine that uses a commercial piezoelectric inkjet printer-head to deliver the inhibitor material. ...
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... Factors such as hatch spacing and degree of orientation are important parameters for determining the final mechanical properties of the part. In addition to these parameters, laser beam speed and layer thickness can have significant effects on part shrinkage and the final size of the part [22,[24][25][26]. ...
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