The first of the solutions presented for the machining of a hydraulic valve housing is rather unusual for MAPAL, as it does not include a fine boring tool for finishing. After piloting, boring and circular milling of the spool bore, in this instance, a multi-bladed reamer performs the final machining step before honing. With its selection of tools, MAPAL demonstrates that some tasks can be tackled with a high degree of accuracy without the need for an adjustable special tool. The concept is particularly suitable for smaller and medium quantities.
If large quantities and high levels of accuracy are sought in series production, the second application solution is the right blueprint. The key difference is the fine boring tool used for fine machining. It meets the high standards for spool bore and compensator bore production. The EasyAdjust-System and guide pads offer reliable fine machining with easy handling. As the customers’ technology partner, MAPAL defines with them the extent to which a concluding honing process can be scaled down or even omitted.
If the part needs to be machined on two sides due to its tolerances, the third solution comes into play. For piloting and boring, MAPAL uses a multi-staged boring tool with radial and tangential indexable inserts. It handles pre-machining of the spool bore and completion of contours in one go. A solid carbide profiling tool processes control edges in a defined way and without flaws. The following fine boring tool with adjustable indexable inserts and guide pads eliminates the axial offset caused by machining from two sides. This could not be achieved to this level of quality with a multi-bladed reamer.
Application solution 4 introduces into fluid power technology the kind of flexibility that is primarily required for small series and prototype building. The mechatronic tool system TOOLTRONIC makes it possible to perform the honing process via an additional axle on the machining centre. This allows all machining to take place in a clamping setup on one machine. Machining with TOOLTRONIC achieves high surface quality and dimensional accuracy with the tightest manufacturing tolerances and high flexibility. Burr-free, rounded transitions are created and there are no errors due to converting to the honing machine. For small quantities, a classic single-blade reamer from the standard range can be used for bore machining instead of a custom tool. In this instance, rapid availability and lower tool costs compensate for the slightly longer machining time.
MAPAL has developed two sample components for the aerospace sector. The Generic Components, a valve housing and a torsion joint, cover all the demanding machining steps.
Combined brake housings unite the brake master cylinder, brake booster and ABS/ESP in one component and pave the way to autonomous driving. MAPAL offers solutions for machining complex aluminum workpieces.
CORMOL from Portugal manufactures stamping tools, for which it has been working closely with MAPAL since 2022. With the OptiMill-3D-HF, CORMOL has found a reliable and economical tool solution.