Micro Milling Cutters from LMT Tools: Precision in Perfection
Schwarzenbek, January 30, 2024 – Best component quality with maximum productivity and process reliability: The micro milling cutters from LMT Tools achieve impressive tool life, excellent surface finishes, and high dimensional accuracy of components, enabling significant performance improvements and reduced cost-per-part in micro-machining.
For highly precise milling with small tool diameters, the tool expert LMT Tools offers a comprehensive portfolio of reliable micro milling cutters. These cutters provide excellent surface finishes, minimal tolerance, long tool life, and increased productivity. The cutting material, coating, and geometry result from decades of collaborative research with leading institutes in coating and micro-geometry development. They have been perfectly tuned to each other and the specific requirements of micro-machining. The high-performance micro milling cutters ensure the best surface quality within tight tolerance ranges (-0.007 mm) and achieve machining results that meet the highest quality standards.
Highly accurate micro-machining of precision parts
The micro milling cutter program from LMT Tools includes 3, 4, and 6 mm precision shanks with h5 tolerance and a diameter range of 0.3 to 3.0 mm. Two geometry variants are available: a toric design with a straight face for precise contours and a design with a ball head for higher flexibility in processing complex 3D shapes. The ball nose allows for precise machining of curves and irregular surfaces. This is particularly advantageous in die and mold making and in the production of workpieces with complex geometries. The advanced neck geometry is characterized by maximum rigidity and stability, effectively reducing vibrations even in demanding machining conditions and significantly increasing process reliability. The compact design of the neck geometry also enables the machining of deep cavities with the highest precision.
Excellent solution for hard machining
One of the main application areas is hard machining in die and mold making – whether complex 3D surfaces, deep cavities, holes, undercuts, or rib structures. LMT Tools addresses high thermomechanical stress with high-temperature-resistant and wear-resistant coating-substrate systems, characterized by excellent oxidation and diffusion resistance as well as high hot hardness. Various versions are available for different machining scenarios regarding rigidity and compactness. The PH variant (ISO P, ISO H) covers demanding materials with strengths of > 1,000 N/mm² and hardness > 55 HRC, while the U variant (ISO P, M, K, N) is universally applicable in different material classes. There are four lengths: extra short (XS), short (S), long (L), and extra-long (XL) with neck relief for deep pockets, tight cavities, and holes. All variants have a helix angle of 30° and a center cutting edge for ramping and plunge milling.
Comprehensive portfolio for die and mold making
Long tool life, outstanding surface quality, perfect dimensional accuracy: Thanks to their excellent performance features, LMT Tools' micro milling cutters set standards in micro-machining, ensuring highly accurate and reliable machining processes. "With the micro program, we complement our extensive selection of tool solutions in the shank and insert area, especially in the field of die and mold making, particularly in the production of injection molds. This allows us to fully serve all areas – from stamping and pressing to forging dies, plastic and die casting molds, to free-form surfaces, electrode production, and mold making," emphasizes Dr. Sascha Beblein, Head of R&D Rotating Tools at LMT Tools.