Precision sleeves made of grade 5 titanium
The secret behind the perfect machining of grade 5 titanium - process reliability and maximum precision!
Applications of titanium grade 5
Titanium grade 5, also known as Ti-6Al-4V, is one of the most commonly used titanium alloys. Due to its high strength, low weight, high temperature and fatigue resistance, and biocompatibility, it is preferred in the medical, watchmaking (e.g. cases and bracelets), aerospace, and oil and gas industries.
Challenges in the production of the sleeve
The sleeve made of titanium grade 5 (material no. 3.7165 ) is manufactured on a Citizen M32 sliding headstock automatic lathe, which is particularly suitable for machining complex and precise parts. Grade 5 titanium requires demanding production at low cutting speeds. The main challenges are to maintain very tight tolerances, in particular a coaxiality of 0.04 mm of the Ø13 H7 in relation to the base A, which is located on the Ø7 H7.
Machining strategy and tool selection
The manufacture of this sleeve requires careful planning and the selection of suitable tools. An important part of the tool range comes from Ifanger AG, whose special tools help us to achieve the exact specifications.
Internal turning Ø7 H7 - Base A
The Swiss-MicroTurn tool type MTKO 66020-R-TIALN is used for the precision machining of the Ø7, which forms the base A of the sleeve and is considered the most precise element of the component. This high-performance tool makes it possible to machine the surface with exceptional precision, as it does not allow any vibrations during the process. This stability is crucial in order to reliably maintain the small coaxiality and H7 tolerance. For finishing, we use a speed of 1800 rpm and a feed rate of 0.02 to 0.05 mm per revolution to ensure optimum surface quality and dimensional accuracy.
MTKO 66020-R-TIALN
MTEC 66050-R-TIALN
Precision bore Ø 17, corner radius 0.2
The MTEC 66030-R-TIALN tool type with a corner radius of 0.2 mm is ideal for this precision bore. This tool is characterized by its high cutting ability and stability as well as its small corner radius. In order to avoid vibrations and ensure the required surface quality Ra 0.4, the shortest possible tool length was selected, which has a suitable corner radius.
MTEC 66030-R-TIALN
Threading M19x1 6H
The Swiss-MicroTurn threading tool type MTGE 66020-R-TIALN is used for the M19x1 6H internal thread. This tool is ideal for obtaining high-quality thread surfaces without burr formation and meeting the demanding tolerances. With a speed of 600 revolutions and a G92 tapping cycle that uses the pitch as a feed (F1), this tool produces precise and consistent threads, which is crucial for the quality of demanding components.
MTGE 66020-R-TIALN
Precision sleeve from Nachbur AG
Founded in 1947 as a family business, Nachbur AG is all about precision turned parts. The company is characterized by decades of experience in the industry and the outstanding ability to manufacture precision turned parts and assemblies to the highest quality standards. This is guaranteed by a certified quality management system, which ensures that all parts correspond exactly to customer specifications. This consistent quality control is one of the main reasons why customers choose the company, particularly in critical application areas such as medical technology or measurement and control technology.
Nachbur AG, Industriestrasse 248, CH-4718 Holderbank