Ultra-precise lathe delivers tools for flat panel display production
1 min read
Moore Tool Company has introduced a roll turning lathe that delivers mirror finishes and straightness within 2 micron over full x and y travel, and has 0.05 micron x-axis repeatability and 0.1 micron z-axis repeatability.
The lathe, specifically designed for diamond turning of rolls to achieve cylindrical straight surfaces as well as mirror finishes, holds parts vertically to eliminate any sag in heavy rolls suspended between centres – parts can weigh up to 2,000 kg and stand on end during machining.
The lathe can directly machine a complex micro-structured surface on the drum using single point diamond tooling. This type of surface is used for the manufacturing of micro-replicated surfaces in polymer films, which are then used in flat panel displays, retro-reflective sheeting products and life science applications.
A passive air damping vibration isolation system combined with a massive granite structure eliminates all chatter to ensure the required mirror finish. Control is a PC-based Nanotech control system.
Two models are available. The smaller handles workpieces up to 1 m long by 350 mm diameter and offers 1,030 mm z travel and 350 mm x travel. The larger accommodates workpieces up to 2 m long and 450 mm diameter with respective z and x travels of 2,030 and 350 mm.
