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1 – 10 of 120Tunay Turk, Cesar E. Dominguez, Austin T. Sutton, John D. Bernardin, Jonghyun Park and Ming C. Leu
This paper aims to present spot pattern welding (SPW) as a scanning strategy for laser-foil-printing (LFP) additive manufacturing (AM) in place of the previously used continuous…
Abstract
Purpose
This paper aims to present spot pattern welding (SPW) as a scanning strategy for laser-foil-printing (LFP) additive manufacturing (AM) in place of the previously used continuous pattern welding (CPW) (line-raster scanning). The SPW strategy involves generating a sequence of overlapping spot welds on the metal foil, allowing the laser to form dense and uniform weld beads. This in turn reduces thermal gradients, promotes material consolidation and helps mitigate process-related risks such as thermal cracking, porosity, keyholing and Marangoni effects.
Design/methodology/approach
304L stainless steel (SS) feedstock is used to fabricate test specimens using the LFP system. Imaging techniques are used to examine the melt pool dimensions and layer bonding. In addition, the parts are evaluated for residual stresses, mechanical strength and grain size.
Findings
Compared to CPW, SPW provides a more reliable heating/cooling relationship that is less dependent on part geometry. The overlapping spot welds distribute heat more evenly, minimizing the risk of elevated temperatures during the AM process. In addition, the resulting dense and uniform weld beads contribute to lower residual stresses in the printed part.
Originality/value
To the best of the authors’ knowledge, this is the first study to thoroughly investigate SPW as a scanning strategy using the LFP process. In general, SPW presents a promising strategy for securing embedded sensors into LFP parts while minimizing residual stresses.
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Carl R. Phillips, Sam D. Cappel and Dirk D. Steiner
Unquestionably, the appraisal interview is a significant part of the performance appraisal process. It is in this formal interview that feedback on subordinate performance is…
Abstract
Unquestionably, the appraisal interview is a significant part of the performance appraisal process. It is in this formal interview that feedback on subordinate performance is communicated, salary/promotion discussions are held, ways of correcting performance deficiencies are discussed, training and development needs are explored, and future work goals and objectives are delineated (Eichel & Bender, 1984; Pratt, 1985).
Aaron D. Hill, Oleg V. Petrenko, Jason W. Ridge and Federico Aime
This work describes and demonstrates a novel measurement system refered to as videometrics. Videometrics uses third-party ratings of video samples to assess individuals’…
Abstract
This work describes and demonstrates a novel measurement system refered to as videometrics. Videometrics uses third-party ratings of video samples to assess individuals’ characteristics with psychometrically validated instruments of the measures of interest. Videometrics is argued to help ensure valid measurement in difficult to access subject pools, offering substantial promise for future research. This work explains the methodology and demonstrates the applicability and validity of videometrics in multiple studies in the context of a difficult to access subject pool – chief executive officers (CEOs). Finally, the applicability of the method to samples for which lack of access to individuals of interest has limited empirical investigation is discussed.
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Malik Ikramullah, Ammad Ahmed Khan Khalil, Muhammad Zahid Iqbal and Faqir Sajjad Ul Hassan
Recent performance appraisal (PA) literature suggests that alongside cognitive biases, rating distortions may stem from rater disposition and PA context. The study investigated…
Abstract
Purpose
Recent performance appraisal (PA) literature suggests that alongside cognitive biases, rating distortions may stem from rater disposition and PA context. The study investigated the role of social value orientation (rater disposition), PA purposes and rater accountability (PA context) toward rating distortions at both performance levels, i.e. good and poor.
Design/methodology/approach
The authors designed an experimental study and elicited data from N = 110 undergraduate students about two video-taped performances of good and poor performers. In these videos, two managers conducted assessment interviews of two different employees for the job of a sales representative at an information technology organization. To ensure the validity of performance ratings, the authors invited 10 senior managers to provide benchmark ratings of the video-taped performances. While being placed in two separate groups, the study participants gave performance ratings on both the video-taped performances. The authors used repeated-measures analysis to analyze data.
Findings
The results revealed that rating distortions took place not because of rater social value orientation, but the PA context. Different rating distortion patterns emerged for different levels of ratees' performance.
Originality/value
This study’s findings furnish new insights for assessing rating distortions for poor as well as good performers. Moreover, the results support previous findings that for good performers, accountable raters are tempted toward accurate ratings and refrained from deflation. Similarly, for poor performers, accountable raters do not inflate ratings. The findings will open research avenues to examine the role of PA purposes in rating distortions for different performance levels.
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Allan H. Church, Lorraine M. Dawson, Kira L. Barden, Christina R. Fleck, Christopher T. Rotolo and Michael Tuller
Benchmark surveys regarding talent management assessment practices and interventions of choice for organization development (OD) practitioners have shown 360-degree feedback to be…
Abstract
Benchmark surveys regarding talent management assessment practices and interventions of choice for organization development (OD) practitioners have shown 360-degree feedback to be a popular tool for both development and decision-making in the field today. Although much has been written about implementing 360-degree feedback since its inception in the 1990s, few longitudinal case examples exist where interventions have been applied and their impact measured successfully. This chapter closes the gap by providing research findings and key learnings from five different implementation strategies for enhancing 360-degree feedback in a large multi-national organization. Recommendations and implications for future research are discussed.
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Robert D. Costigan, Richard C. Insinga, Grazyna Kranas, Selim S. Ilter, Vladimir A. Kureshov and J. Jason Berman
This study investigates one aspect of the multi‐source feedback process: the agreement between self‐ratings and coworker ratings of workplace behavior. Moderators of rating…
Abstract
This study investigates one aspect of the multi‐source feedback process: the agreement between self‐ratings and coworker ratings of workplace behavior. Moderators of rating agreement (i.e., number of years that the coworker had known the employee, trustworthiness of the employee, and country status) are carefully examined. Eighty‐six Russian employee‐coworker dyads, 99 Polish dyads, and 95 U.S. dyads from more than 225 organizations participated. Regression results indicate that rating agreement was higher when the Polish and U.S. coworker knew the target employee a shorter period of time and when the Polish, Russian, and U.S. target employee was considered trustworthy.
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This chapter reconsiders commonly held views on the ownership and management of private property, contrasting capitalist and simple property, particularly in relation to how a…
Abstract
Purpose
This chapter reconsiders commonly held views on the ownership and management of private property, contrasting capitalist and simple property, particularly in relation to how a firm shareholder governance model has shaped society. This consideration is motivated by the scale and scope of the modern global crisis, which has combined financial, economic, social and cultural dimensions to produce world disenchantment.
Methodology/approach
By contrasting an exchange value standpoint with a use value perspective, this chapter explicates current conditions in which neither the state nor the market prevail in organising economic activity (i.e. cooperative forms of governance and community-created brand value).
Findings
This chapter offers recommendations related to formalised conditions for collective action and definitions of common guiding principles that can facilitate new expressions of the principles of coordination. Such behaviours can support the development of common resources, which then should lead to a re-appropriation of the world.
Practical implications
It is necessary to think of enterprises outside a company or firm context when reflecting on the end purpose and means of collective, citizen action. From a methodological standpoint, current approaches or studies that view an enterprise as an organisation, without differentiating it from a company, create a deadlock in relation to entrepreneurial collective action. The absence of a legal definition of enterprise reduces understanding and evaluations of its performance to simply the performance by a company. The implicit shift thus facilitates the assimilation of one with the other, in a funnel effect that reduces collective projects to the sole projects of capital providers.
Originality/value
Because forsaking society as it stands is a radical response, this historical moment makes it necessary to revisit the ideals on which modern societies build, including the philosophy of freedom for all. This utopian concept has produced an ideology that is limited by capitalist notions of private property.
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