Junker combines precision with maximum flexibility in high-speed grinding with the Quickpoint machine. © Junker

Advantages in series production

Interchangeable head cutters from Mapal are manufactured so precisely that they can be changed in the machine without any tool correction. "The tool head is unscrewed and the new cutting edge is fitted. You just press the start button again and continue production," says Baur. "This is particularly important for series production." Changing conventional shank tools is usually only possible in the tool presetting room, where the lengths have to be set precisely on the measuring machine.

If the machining task can be solved with replaceable head cutters, they are the more cost-effective alternative. "The larger the tool, the greater the benefit," says Krenzer. "And in terms of quality and accuracy, the performance level of our replaceable head milling cutters corresponds to their solid carbide counterparts," emphasizes the Managing Director.

Accuracy enables high part quality

The prerequisite for this is that the interface is ground with the utmost precision, "otherwise it won't work," says Baur. "If the coolant temperature changes by just one degree Celsius, the tool is no longer manufactured with micro-precision," he says, explaining one of the challenges.

The Mapal competence center for solid carbide tools grinds interfaces for replaceable head cutters on a Quickpoint from Junker. © Junker

The measuring system of the Quickpoint 3000-60S detects such dimensional fluctuations and corrects them automatically, as well as wear on the grinding wheel, for example. This accuracy enables consistently high quality. The replaceable head system is advantageous for customers who work with a high level of automation, among others. "Instead of having to stock complete tools three or four times, they only need the replacement heads," says Krenzer. This is because the shanks are reusable and can be combined with different heads. "This reduces the cost of storage space and ties up less capital in the form of tools."

Efficient thanks to a high degree of automation

With the Quickpoint, almost all workpiece contours, materials and material combinations can be ground with a single grinding wheel in a single clamping. At the Mapal competence center, it is used for grinding operations such as diameters, face shoulders, tapers and surfaces. Mapal grinds its blanks with the Quickpoint 3000-60S. In addition to the interfaces, these are primarily products in the higher diameter range of twelve to 32 millimetres. Here, the Quickpoint is particularly efficient and guarantees reliable, high-quality series production thanks to its high degree of automation. At Mapal, they know they can rely on the machine.

Very good experience with the service

Thomas Baur concludes by highlighting another point in Quickpoint's favor: "We have had very good experiences with Junker." He is not just referring to the hardware. "The best thing is the service that is there when it is needed," says Baur, expressing the practitioner's point of view.