234 research outputs found
An experimental study on micro-milling of a medical grade Co-Cr-Mo alloy produced by selective laser melting
No full textCobalt-chromium-molybdenum (Co-Cr-Mo) alloys are very promising materials, in particular, in the biomedical field where their unique properties of biocompatibility and wear resistance can be exploited for surgery applications, prostheses, and many other medical devices. While Additive Manufacturing is a key technology in this field, micro-milling can be used for the creation of micro-scale details on the printed parts, not obtainable with Additive Manufacturing techniques. In particular, there is a lack of scientific research in the field of the fundamental material removal mechanisms involving micro-milling of Co-Cr-Mo alloys. Therefore, this paper presents a micro-milling characterization of Co-Cr-Mo samples produced by Additive Manufacturing with the Selective Laser Melting (SLM) technique. In particular, microchannels with different depths were made in order to evaluate the material behavior, including the chip formation mechanism, in micro-milling. In addition, the resulting surface roughness (Ra and Sa) and hardness were analyzed. Finally, the cutting forces were acquired and analyzed in order to ascertain the minimum uncut chip thickness for the material. The results of the characterization studies can be used as a basis for the identification of a machining window for micro-milling of biomedical grade cobalt-chromium-molybdenum (Co-Cr-Mo) alloys
Gyretes jacobi Ochs 1932
No full text<i>Gyretes jacobi</i> Ochs, 1932 <p> <i>Gyretes jacobi</i> Ochs, 1932: 52 (orig. descr.); 1934: 145 (descr.); 1948: 567 (checklist); 1966: 456, 459 (descr.); Blackwelder 1944: 82 (checklist)</p> <p>DISTRIBUTION: Brazil (SP), Paraguay.</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 198, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
Gyretes sodalis Ochs 1965
No full text<i>Gyretes sodalis</i> Ochs, 1965 <p> <i>Gyretes sodalis</i> Ochs, 1965b: 40, 63 (orig. descr.) DISTRIBUTION: Brazil (AM).</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 206, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
Gyretes torrenticola subsp. alticola Ochs 1964
No full text<i>Gyretes torrenticola alticola</i> Ochs, 1964 <p> <i>Gyretes torrenticola alticola</i> Ochs, 1964b: 37 (orig. descr.); 1966: 459 (descr.); Marinoni <i>et al.</i> 1992: 122 (type list) DISTRIBUTION: Brazil (SC).</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 208, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
Gyretes obesus Ochs 1958
No full text<i>Gyretes obesus</i> Ochs, 1958 <p> <i>Gyretes inflatus obesus</i> Ochs, 1958b: 481 (orig. descr.); 1960b: 312 (descr.) <i>Gyretes obesus</i> Ochs: Ochs 1963c. 482 (n. comb.) DISTRIBUTION: Brazil (RS, SP).</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 201, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
Gyretes sobrinus Ochs 1965
No full text<i>Gyretes sobrinus</i> Ochs, 1965 <p> <i>Gyretes sobrinus</i> Ochs, 1965a: 299, 308 (orig. descr.) <i>Gyrinus tumidus</i> Régimbart: Ochs 1929a: 80 (partim, misident.) DISTRIBUTION: Brazil (MG).</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 206, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
Gyretes pygmaeolus Ochs 1963
No full text<i>Gyretes pygmaeolus</i> Ochs, 1963 <p> <i>Gyretes pygmaeolus</i> Ochs, 1963b: 381, f. 3, 4b, 5b (orig. descr., illustr.); 1965b: 39, 55 (record); 1967: 144 (record) DISTRIBUTION: Brazil (AM).</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 204, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
Gyretes vicinus Ochs 1964
No full text<i>Gyretes vicinus</i> Ochs, 1964 <p> <i>Gyretes vicinus</i> Ochs, 1964b: 39 (orig. descr.); 1965a: 310 (descr.); Weidner 1976: 195 (type list) DISTRIBUTION: Brazil (PR).</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 208, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
Gyretes siolii Ochs 1958
No full text<i>Gyretes siolii</i> Ochs, 1958 <p> <i>Gyretes siolii</i> Ochs, 1958a: 182, f. 4 (orig. descr., illustr.); 1965b: 39, 59 (record) DISTRIBUTION: Brazil (AM).</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 206, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
Gyretes elatior Ochs 1951
No full text<i>Gyretes elatior</i> Ochs, 1951 <p> <i>Gyretes elatior</i> Ochs, 1951: 72, f.4, 6 (orig. descr., illustr.); 1966: 462 (descr.) <i>Gyretes glabratus</i> Régimbart: Ochs 1929a: 81 (partim, misident.) DISTRIBUTION: Brazil (SP).</p>Published as part of <i>Colpani, Daniara, Benetti, Cesar João & Hamada, Neusa, 2014, A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil, pp. 185-213 in Zootaxa 3889 (2)</i> on page 195, DOI: 10.11646/zootaxa.3889.2.2, <a href="http://zenodo.org/record/230123">http://zenodo.org/record/230123</a>
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