The Brazilian Gear Conference ITA-WZL appears as a response to the potential demands for technological solutions and innovation research for gears, as one of the initiatives of the partnership between CCM-ITA (Brazil) and WZL-RWTH Aachen (Germany).
The event addresses topics related to manufacturing technologies, product development, and testing of gears, organized into thematic blocks covering the following areas of knowledge: Surface Integrity, Design for Manufacturing, Additive Manufacturing, and Power Density.
The technical seminars address the global state-of-the-art and successful case studies of academic-industry partnerships in gears and power transmission systems. Internationally renowned special guests from the industrial sector will participate in the event’s discussion panels. At the end of the first day, an immersive Product Development Journey will take place at CCM-ITA’s facilities, with a limited number of participants, followed by a cocktail reception. The second day will conclude with the CCM-ITA Open Doors.
The Brazilian Gear Conference ITA-WZL 2025 (BGC 25) will take place on August 13 and 14, 2025, at Parque de Inovação Tecnológica São José dos Campos, in the city of São José dos Campos, São Paulo, Brazil.
Prof. Dr. Ronnie
Rodrigo Rego
Prof. Dr.-Ing.
Christian Brecher
M.Sc. Christian
Westphal
Prof. Dr.-Ing.
Thomas Bergs
08:00 - 08:30
Registration
08:30 - 08:40
Welcome | Prof. Dr. Antonio Guilherme Lorenzi (ITA / Rector)
08:40 - 09:20
Prof. Dr. Ronnie
Rodrigo Rego
09:20 - 09:50
Dr. Marcelo Prim
09:50 - 10:20
Coffee Break
10:20 - 10:50
10:50 - 11:40
Baydu Al
11:40 - 12:25
From Concept to Detailed Analysis: Efficient Gearbox Development with the FVA-Workbench
This presentation demonstrates how to efficiently develop a gearbox from the initial concept to detailed analysis using the FVA-Workbench. Taking a bevel-spur gearbox as an example, the full capabilities of the software are showcased, from creating a first design in just a few steps to refining and analyzing it down to the smallest detail. The FVA-Workbench combines a highly user-friendly interface with the latest state-of-the-art technology and research, enabling engineers to develop and validate gearboxes quickly, accurately, and with scientific precision.
12:25 - 13:40
Lunch
13:40 - 14:10
This presentation will contextualize the challenges of gear design for the agricultural market and explore potential optimization strategies to increase torque density. It will also present results on surface integrity and fatigue life enhancement using the Shot Peening and Superfinishing processes. Finally, it will discuss the gear manufacturing chain incorporating the superfinishing process, which may extend to the rolling contact fatigue on gears.
14:10 - 14:40
At WZL, a lifetime prediction model for the tooth root was developed considers crack growth rate with the Nasgro equation. The model uses local material properties such as hardness, residual stresses, fracture toughness and the stress intensity threshold to calculate fatigue life from crack initiation to fracture. The first validations of the model were carried out with pulsator tests, further investigations are being carried out on the WZL high-performance back-to-back test rig.
14:40 - 15:10
The presentation will focus on investigating the influence of both substrate residual stress state and topography on Nb and Ti doped MoS2 coatings for low-friction gear durability
15:10 - 15:40
Coffee Break
15:40 - 16:10
16:10 - 16:40
The aim of the report is to investigate the effects of waviness on the acoustics behaviour of gear pairs. In this paper, an analytical model is used to explain the effects in theory. Afterwards, the FE-based tooth contact analysis software ZaKo3D is used to calculate the behaviour in detail. Key takeaways are that a difference between βᴮ and βᵂ does not immediately lead to a reduction of the amplitude of the waviness order. The effect depends on the wavelength and the tooth width. Also, it is shown that there are cross influences between width crowning and waviness.
16:40 - 17:30
Dr.-Ing.
Nico Tross
Dr.-Ing.
Oliver Winkel
19:00 - 22:00
After a full day of technical discussions, a special evening is offered to BGC25 participants at a cocktail party. The event will take place at Golden Bar, located at: Av. Cassiano Ricardo, 70 – Parque Residencial Aquarius, São José dos Campos – SP, 12246-870.
Welcome | Prof. Dr.-Ing. Christian Brecher (WZL)
Coffee Break
Lunch
The aim of productive manufacturing is to ensure workpiece quality while minimizing manufacturing costs, whereby tool wear influences both workpiece quality and manufacturing costs. In this paper, an algorithm for detecting and quantifying tool wear on gear cutting tools using computer vision methods is presented. For this, the suitability of traditional and deep learning-based computer vision methods for tool wear detection is compared. Overall, good agreement is achieved between the algorithm-generated and manually measured wear curves with an average absolute difference of ΔVBmax = 7.99 µm for bevel cutting and ΔVBmax = 19.95 µm for gear hobbing.
The visit will feature newly installed equipment: Zirtec Shot Peening Station, a L-PBF Additive Manufacturing Machine from Omnitek, a KAPP NILES Gear Profile Grinding Machine, and a Binder Jetting Additive Manufacturing Machine from Markforged, which now join the existing infrastructure at CCM, further strengthening the laboratory’s capacity for applied research and innovation in the gear industry.