The Effect of Surface Treatments Applied in PVD Gold Coating Methods on Drilling Performance

Öz

The geometric design and surface properties of cutting tools directly influence machining performance. In drilling operations, the effects of tool geometry and coating characteristics on cutting forces, tool life, and surface quality become more pronounced. This study compares HiPIMS and cathodic arc techniques used to produce AlTiN coatings via PVD. The effects of pre- and post-coating surface treatments on drilling performance were examined. Experiments were conducted by drilling 4140 steel with Ø6.8 mm solid carbide drills. Results showed that HiPIMS coated tools exhibited lower cutting forces, less diameter deviation, and reduced wear, while surface treatments improved coating adhesion and extended tool life.

Anahtar Kelimeler

• PVD (Physical Vapor Deposition)
• HiPIMS
• Surface treatments
• Drilling performance

Sementit Karbür Matkaplara Uygulanan Yüzey İşlemleri ve Pvd/Hipıms Altin Kaplamalarının Delme Performansına Etkisi

Öz

Talaşlı imalatta kesici takımların geometrik tasarımı ve yüzey özellikleri, işleme performansını doğrudan etkileyen faktörlerdir. Delme operasyonları, takım geometrisinin ve kaplama karakteristiklerinin kesme kuvvetleri, takım ömrü ve iş parçası yüzey kalitesindeki etkilerini daha belirgin ortaya koymaktadır. Bu çalışmada, PVD yöntemiyle elde edilen AlTiN kaplamalarda HiPIMS ve katodik ark teknikleri karşılaştırılmıştır. Kaplama öncesi ve sonrası uygulanan yüzey işlemlerinin delme performansına etkileri incelenmiştir. 4140 çeliğin Ø6,8 mm sementit karbür matkaplarla delinmesiyle yapılan denemelerde HiPIMS yöntemiyle kaplanmış takımların daha düşük kesme kuvveti, daha az çaptan sapma ve daha düşük takım aşınması sergilediğini ve yüzey işlemlerinin, kaplamanın alt tabakaya yapışmasını ve takım ömrünü artırdığı belirlenmiştir.

Anahtar Kelimeler

• PVD (Physical Vapor Deposition)
• HiPIMS
• yüzey işlemleri
• delme performansı

Kaynakça

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