Sphere burnishing tool
When precision and perfection meet, there is no room for compromise. Our answer to this challenge: a specially developed sphere rolling tool with perfectly coordinated geometry and individually adjusted angles.
Task
- Burnishing of a forged sphere pin with Ø 20–35 mm
- Large series: number of pieces from 300.000–500.000 pieces
- High demand on surface quality (Rz < 1 µ) of the machined sphere
- Noise should be avoided
Solution
- Adapted ball burnishing tool from Baublies with defined geometry (adapted angle)
- For use on lathes with driven tools
Customer Benefit
Reduction of machining time:
- Machining is possible in one set-up, additional retooling and further operations are not necessary
Cost reduction:
- No separate rolling machine is required, investment costs are reduced by up to 85%
- Lower wear costs
Quality:
- Roughness depth Rz < 1 µ is achieved with process reliability
Process:
- Smoothing down to the center is possible
- Simple process
- Machining in one setup
Burnishing tool for stepped holes
With the innovative step rolling tool from Baublies, you can rely on maximum efficiency and precision in machining production. The specially optimized geometry is perfectly tailored for use in high-performance machining centers and enables both diameters to be machined in a single process step.
Task
- Smoothing of a two-stage bore in steering gears for commercial vehicles
- Bores Ø 117 mm and 45 mm
- Surface finish better Rz < 6 µ
- Material: Cast iron housing
- Series production
Solution
- Burnishing tool for stepped holes from Baublies with adapted geometry for use in machining centers
- Both diameter ranges are machined in one process
- Parameters:
– Speed: 80 m/min
– Feed rate: 1 mm/rev
Customer Benefit
Time saving:
- Machining of both bores in one operation
Surface quality:
- High surface quality: Roughness value of Rz < 6 µ is achieved
Quality:
- Roughness variations are compensated, compared to the alternative machining with the reamer
Single-roller burnishing tool
Durability that can handle any load. Our single-roller burnishing tools reliably secure axle journals made of GGG40/GGG60 – crack-resistant, durable, and designed for at least 80,000 cycles.
Task
- Strengthening of axle journals for heavy commercial vehicles
- Due to the high load, the transition from the bearing area to the end face of the axle journal has high requirements for safety against cracking.
- The service life of the components is specified in at least 80,000 cycles
- Material: GGG40, GGG60
Solutions
- Deep rolling with single-roller burnishing tool with base body
- Deep rolling process with forces of 5 kN
- Speed: 50 m/min
- Feed rate 0,1 mm/rev
Customer benefit
Quality:
- Increased dynamic strength with load cycles above 130,000 exceed the requirement