Complex profile broaches are widely used in the manufacture of complex parts aero-engines, but forces broaching process difficult to predict and control. A new numerical model for force with tools was presented, which considered area arc length curved shear zone boundary. The were calculated by curve function boundary, is firstly predicted FEM simulation. Then, an experimental device set up car...

We present a low cost technique of direct machining of precision waveguide structures on metal blocks. The micro machine setup employs compact, precision numerically controlled (NC) stages to automate the machining process. Endmills are held in high speed pneumatic spindles, while other features are made by scraping (”broaching”) in repeated small passes. We can set up two endmills and three br...

In papers [2,4,5] the solution relations and algorithm of method block iterations solving linear nonlinear equations by semivanalytic finite element for curvilinear inhomogeneous prismatic bodies are realized. paper [1], a numerical study convergence solutions was performed, wide range test problems with smoothly abruptly changing physical geometric characteristics in elastic resilient-plastic ...

Abstract Cutting fluids are an important part of today’s metal cutting processes, especially when machining aerospace alloys. They offer the possibility to extend tool life and improve performance. However, equipment handling also raises manufacturing costs. To reduce negative impact high cost fluids, cooling systems strategies constantly being optimized. In most existing works, influences diff...

Abstract The article presents the test results of surface quality parameters after broaching heat-resistant steels grades: 1.7335 (13CrMo4-5) and 1.4841 (X15CrNiSi25-20). aim work is to determine technological methods obtaining lowest treated roughness, layer hardening elimination defects broaching. To investigate influence cutting conditions (cutting speed, tool geometry feed) on roughness har...

Real-time monitoring in CNC machine tools is focused on the early detection of tool wear, and this way to assess part piece quality. The machining process known as broaching critical for firtree slots (dovetails) production turbomachinery components, such turbine disks. Tight tolerances one hand, even less than 5 µm firtree-slots pressure faces, high productivity other, are two main requirement...