Search Results - "DebRoy, T"

An improved prediction of residual stresses and distortion in additive manufacturing by Mukherjee, T., Zhang, W., DebRoy, T.

“…[Display omitted] •Roles of variables and alloys on stresses and strains in 3D printing are studied.•Quality of residual stress and distortion modeling depends…”
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The Hardness of Additively Manufactured Alloys by Zuback, J S, DebRoy, T

“…The rapidly evolving field of additive manufacturing requires a periodic assessment of the progress made in understanding the properties of metallic…”
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A digital twin for rapid qualification of 3D printed metallic components by Mukherjee, T., DebRoy, T.

“…[Display omitted] •Digital twin will reduce trial and error testing and accelerate the product qualification.•Twin consists of mechanistic, control &…”
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Evolution of solidification texture during additive manufacturing by Wei, H. L., Mazumder, J., DebRoy, T.

“…Striking differences in the solidification textures of a nickel based alloy owing to changes in laser scanning pattern during additive manufacturing are…”
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Mitigation of lack of fusion defects in powder bed fusion additive manufacturing by Mukherjee, T., DebRoy, T.

“…[Display omitted] •An easy to use dimensionless number is proposed to mitigate lack of fusion defects.•The number correlates well with the measured void…”
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Origin of grain orientation during solidification of an aluminum alloy by Wei, H.L., Elmer, J.W., DebRoy, T.

“…The evolution of grain morphology during solidification of a moving aluminum alloy pool is simulated by considering heat transfer, flow of liquid metal in the…”
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Mechanistic models for additive manufacturing of metallic components by Wei, H.L., Mukherjee, T., Zhang, W., Zuback, J.S., Knapp, G.L., De, A., DebRoy, T.

“…Additive manufacturing (AM), also known as 3D printing, is gaining wide acceptance in diverse industries for the manufacturing of metallic components. The…”
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Mitigation of thermal distortion during additive manufacturing by Mukherjee, T., Manvatkar, V., De, A., DebRoy, T.

“…Additively manufactured parts are often distorted because of spatially variable heating and cooling. Currently there is no practical way to select process…”
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Printability of alloys for additive manufacturing by Mukherjee, T., Zuback, J. S., De, A., DebRoy, T.

“…Although additive manufacturing (AM), or three dimensional (3D) printing, provides significant advantages over existing manufacturing techniques, metallic…”
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Additive manufacturing of metallic components – Process, structure and properties by DebRoy, T., Wei, H.L., Zuback, J.S., Mukherjee, T., Elmer, J.W., Milewski, J.O., Beese, A.M., Wilson-Heid, A., De, A., Zhang, W.

“…Since its inception, significant progress has been made in understanding additive manufacturing (AM) processes and the structure and properties of the…”
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Building blocks for a digital twin of additive manufacturing by Knapp, G.L., Mukherjee, T., Zuback, J.S., Wei, H.L., Palmer, T.A., De, A., DebRoy, T.

“…Properties and serviceability of additively manufactured components are affected by their geometry, microstructure and defects. These important attributes are…”
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Metallurgy, mechanistic models and machine learning in metal printing by DebRoy, T., Mukherjee, T., Wei, H. L., Elmer, J. W., Milewski, J. O.

“…Additive manufacturing enables the printing of metallic parts, such as customized implants for patients, durable single-crystal parts for use in harsh…”
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Building digital twins of 3D printing machines by DebRoy, T., Zhang, W., Turner, J., Babu, S.S.

“…Geometrical conformity, microstructure and properties of additively manufactured (AM) components are affected by the desired geometry and many process…”
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Scientific, technological and economic issues in metal printing and their solutions by DebRoy, T., Mukherjee, T., Milewski, J. O., Elmer, J. W., Ribic, B., Blecher, J. J., Zhang, W.

“…3D printing is now widely used in aerospace, healthcare, energy, automotive and other industries. Metal printing, in particular, is the fastest growing sector,…”
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Heat and fluid flow in additive manufacturing—Part I: Modeling of powder bed fusion by Mukherjee, T., Wei, H.L., De, A., DebRoy, T.

“…[Display omitted] •We propose & test a 3D, transient, heat and fluid flow model for powder bed fusion.•It computes fusion zone geometry, cooling rates and…”
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Fusion zone geometries, cooling rates and solidification parameters during wire arc additive manufacturing by Ou, W., Mukherjee, T., Knapp, G.L., Wei, Y., DebRoy, T.

“…[Display omitted] •A mechanistic model of wire arc additive manufacturing is validated experimentally.•3D transient model considers mass addition, heat…”
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Recent advances in friction-stir welding – Process, weldment structure and properties by Nandan, R., DebRoy, T., Bhadeshia, H.K.D.H.

“…Friction-stir welding is a refreshing approach to the joining of metals. Although originally intended for aluminium alloys, the reach of FSW has now extended…”
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Residual stresses and distortion in additively manufactured compositionally graded and dissimilar joints by Mukherjee, T., Zuback, J.S., Zhang, W., DebRoy, T.

“…[Display omitted] •We seek to reduce the problem of residual stress and distortion in dissimilar joint.•Stress and distortion in graded joint are compared with…”
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Toward optimum friction stir welding tool shoulder diameter by Arora, A., De, A., DebRoy, T.

“…Currently friction stir welding tools are designed by trial and error. Here we propose and test a criterion for the design of a tool shoulder diameter based on…”
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Additive manufacturing of functionally graded transition joints between ferritic and austenitic alloys by Zuback, J.S., Palmer, T.A., DebRoy, T.

“…Dissimilar metal joints between ferritic and austenitic alloys are susceptible to premature failure due to diffusive carbon loss from the ferritic alloy driven…”
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