{"id":3110,"date":"2023-10-07T09:59:34","date_gmt":"2023-10-07T01:59:34","guid":{"rendered":"https:\/\/maxtormetal.com\/?post_type=product&p=3110"},"modified":"2026-06-22T15:46:21","modified_gmt":"2026-06-22T07:46:21","slug":"lamina-de-guilhotina","status":"publish","type":"product","link":"https:\/\/maxtormetal.com\/pt\/product\/shear-blade\/","title":{"rendered":"L\u00e2minas de Guilhotina"},"content":{"rendered":"

\u00a0<\/h4>\r\n

Faca de cisalha industrial de alto desempenho (Guilhotinas e cisalhas voadoras)<\/h2>\r\n

Projetadas para o cisalhamento de precis\u00e3o a frio e a quente de chapas e placas met\u00e1licas. Essas ferramentas utilizam folgas f\u00edsicas otimizadas para gerar uma tens\u00e3o de cisalhamento que excede a resist\u00eancia ao cisalhamento do material, alcan\u00e7ando uma separa\u00e7\u00e3o sem rebarbas e sem cavacos, livre de zonas afetadas pelo calor (ZAC).<\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
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Engineering Parameter<\/strong><\/p>\r\n<\/td>\r\n

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Cold Shearing Specification<\/strong><\/p>\r\n<\/td>\r\n

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Heavy-Duty \/ Hot Shearing Specification<\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Materiais Comuns<\/strong><\/p>\r\n<\/td>\r\n

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D2 (1.2379), SKD11<\/p>\r\n<\/td>\r\n

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H13 (1.2344), S7<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Dureza (HRC)<\/strong><\/p>\r\n<\/td>\r\n

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58 \u2013 62<\/p>\r\n<\/td>\r\n

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48 \u2013 58 (Application dependent)<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Straightness<\/strong><\/p>\r\n<\/td>\r\n

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< 0.02 mm\/m<\/p>\r\n<\/td>\r\n

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< 0.05 mm\/m<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Paralelismo<\/strong><\/p>\r\n<\/td>\r\n

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< 0,015 mm<\/p>\r\n<\/td>\r\n

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< 0.030 mm<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Edge Finish (Ra)<\/strong><\/p>\r\n<\/td>\r\n

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< 0.8 \u00b5m (Fine Ground)<\/p>\r\n<\/td>\r\n

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< 1.2 \u00b5m<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Compatible Machines<\/strong><\/p>\r\n<\/td>\r\n

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Amada, Cincinnati, Bystronic, LVD, Durma<\/p>\r\n<\/td>\r\n

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Custom Flying Shears, Scrap Shears<\/p>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

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Vis\u00e3o geral da engenharia de facas de cisalha: A mec\u00e2nica do cisalhamento<\/h2>\r\n

Industrial shearing is a complex mechanical process that involves the plastic deformation and subsequent fracture of metal through the application of opposing shear forces. Unlike thermal cutting methods, shear blades provide “cold processing,” which preserves the metallurgical characteristics of the material edges.<\/p>\r\n

2.1 The Shearing Mechanism<\/h3>\r\n

The process is initiated as the upper blade descends, creating a localized stress field. When the stress exceeds the material’s ultimate shear strength, fracture occurs. The quality of this fracture is governed by the “Blade Clearance” (Gap Management). In engineering terms, this clearance typically ranges from 5% to 10% of the material thickness, depending on the material’s hardness.<\/p>\r\n

2.2 Wear Dynamics<\/h3>\r\n

Blade wear manifests in three primary stages:<\/p>\r\n

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  1. Initial Bedding-in:<\/strong> Rapid wear of microscopic grinding peaks.<\/li>\r\n
  2. Steady State Wear:<\/strong> Gradual blunting of the cutting edge radius.<\/li>\r\n
  3. Catastrophic Failure:<\/strong> Micro-chipping occurs when the edge radius exceeds critical limits (typically >0.2mm), leading to increased cutting force and thermal load.<\/li>\r\n<\/ol>\r\n
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    Aplica\u00e7\u00f5es industriais de facas de cisalha: An\u00e1lise por setor<\/h2>\r\n

    Shear blades are vital across diverse sectors, each presenting unique engineering constraints:<\/p>\r\n