Procceedings of the 11th Brazilian Congress on Manufacturing Engineering最新文献

TRATAMENTO HÍBRIDO DE TÊMPERA E CEMENTAÇÃO POR PLASMA NO CAMPO DA AUSTENITA METAESTÁVEL EM AÇO DE ALTA TEMPERABILIDADE: INFLUÊNCIA DA MISTURA GASOSA NA OBTENÇÃO DE AUSTENITA ESTABILIZADA PELO CARBONO 高淬火钢亚稳态奥氏体领域的混合淬火和等离子体渗碳处理:气体混合物对获得碳稳定奥氏体的影响

Procceedings of the 11th Brazilian Congress on Manufacturing Engineering Pub Date : 1900-01-01 DOI: 10.26678/abcm.cobef2021.cob21-0261

Felipe Jedyn, Rodrigo Perito Cardoso, Silvio Francisco Brunatto

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INFLUÊNCIA DA GEOMETRIA DA FERRAMENTA NA RUGOSIDADE DA LIGA Ti-15Mo TORNEADA 刀具几何形状对Ti-15Mo车削合金粗糙度的影响

Procceedings of the 11th Brazilian Congress on Manufacturing Engineering Pub Date : 1900-01-01 DOI: 10.26678/ABCM.COBEF2021.COB21-0089

Denny Paris, A. Antonialli, Cidália Ventura

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ANÁLISE COMPARATIVA MECÂNICA-TRIBOLÓGICA DE FERRAMENTAS DE CORTE APÓS REAFIAÇÃO – PROCESSO MECÂNICO DE USINAGEM POR FRESAMENTO 再磨后刀具的力学-摩擦学比较分析。铣削加工机械工艺

Procceedings of the 11th Brazilian Congress on Manufacturing Engineering Pub Date : 1900-01-01 DOI: 10.26678/ABCM.COBEF2021.COB21-0003

gleibson ernandes, Diego Furtado Silva, Samuel Monteiro, R. Cozza

{"title":"ANÁLISE COMPARATIVA MECÂNICA-TRIBOLÓGICA DE FERRAMENTAS DE CORTE APÓS REAFIAÇÃO – PROCESSO MECÂNICO DE USINAGEM POR FRESAMENTO","authors":"gleibson ernandes, Diego Furtado Silva, Samuel Monteiro, R. Cozza","doi":"10.26678/ABCM.COBEF2021.COB21-0003","DOIUrl":"https://doi.org/10.26678/ABCM.COBEF2021.COB21-0003","url":null,"abstract":". In this work, was conducted a comparation between interchangeable carbide inserts regarding the tribological machining performance – in terms of useful life – and surface quality of the material submitted to milling machining process. For this purpose, were used interchangeable carbide inserts under work conditions classified as “unused” and “regrinded”, in a milling machining process carried out in a machining center. The results showed that the interchangeable carbide inserts presented a tribological performance of, approximately, 75% in relation to interchangeable carbide insert in the initial condition of “unused”. Additionally, although it has been reported an increase in the roughness of the milled surfaces, the average value of R a is within the corresponding range of values to milling mechanical processes. Thereby, it is concluded that the regrinding procedure carried out on the machining tools provided results that can be relatively considered good in terms of tribological performance – useful life and surface finish achieved – when compared to a machining tool under the initial condition of “unused”.","PeriodicalId":179669,"journal":{"name":"Procceedings of the 11th Brazilian Congress on Manufacturing Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123261700","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}

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NITRETAÇÃO E ENVELHECIMENTO SIMULTÂNEO LIGA NAB VIA PI3: INFLUÊNCIA DO TEMPO NA DUREZA SUPERFICIAL 通过PI3同时渗氮和时效NAB合金:时间对表面硬度的影响

Procceedings of the 11th Brazilian Congress on Manufacturing Engineering Pub Date : 1900-01-01 DOI: 10.26678/abcm.cobef2021.cob21-0257

J. Silva, Bruna Schibicheski Kurelo, Gelson de Souza, Silvio Francisco Brunatto

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Caracterização e análise da soldagem plasma com alimentação dinâmica de arame 动态送丝等离子焊接的表征与分析

Procceedings of the 11th Brazilian Congress on Manufacturing Engineering Pub Date : 1900-01-01 DOI: 10.26678/ABCM.COBEF2021.COB21-0304

Á. F. Rosa, Victor Igor Berbare Lemos, Felipe Batista, R. H. G. E. Silva

{"title":"Caracterização e análise da soldagem plasma com alimentação dinâmica de arame","authors":"Á. F. Rosa, Victor Igor Berbare Lemos, Felipe Batista, R. H. G. E. Silva","doi":"10.26678/ABCM.COBEF2021.COB21-0304","DOIUrl":"https://doi.org/10.26678/ABCM.COBEF2021.COB21-0304","url":null,"abstract":"PAW (Plasma Arc Welding) is a versatile welding process using a non-consumable tungsten electrode that can be applied at different energy levels, and also with or without filler material. It is also common in arc welding processes for the filler material to be fed continuously into the weld pool. However, an innovative technique of wire feeding, which promotes a forward and backward movement of the filler material into the weld pool, named dynamic feeding, is not widely spread in the technical literature but may offer some advantage to welding procedures. In this context, the present work has as main objective, to study and to characterize the dynamic wire feeding technique applied in the PAW process with the intention to verify, mainly, the characteristics of the metal transfer in comparison with the continuous wire feeding. Thus, the two wire feeding techniques (continuous and dynamic) were applied in the PAW process. Monitoring equipment of the welding electrical signals synchronized with advanced high speed videography techniques were used to highlight the effects referring to metal transfer, dynamics of the welding wire in the weld pool and general interactions related to the arc/wire/weld pool assembly. The experiments highlighted the main limitations and advantages of the PAW process with dynamic feeding and showed that this technique has advantages over continuous feeding, especially related to metal transfer at low levels of wire speed, i.e., below 1 m.min-1.","PeriodicalId":179669,"journal":{"name":"Procceedings of the 11th Brazilian Congress on Manufacturing Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122033377","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}

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