Made to Measure
- October 24, 2017
New surface finish probe
The SFP2 is a new surface finish probe for Renishaw’s Revo five axis measurement system on CMMs. The company says the new probe increases the surface finish measurement ability of the Revo, which offers a multi-sensor capability providing touch-trigger, high speed tactile scanning and non-contact vision measurement on a single CMM. The SFP2 system consists of a probe and a range of modules and is automatically interchangeable with all other probe options available for Revo, providing the flexibility to easily select the optimum tool to inspect a wide range of features, all on one CMM platform. Data from multiple sensors is automatically referenced to a common datum. The surface finish system is managed by the same I++ DME compliant interface as the Revo system, and full user functionality is provided by Renishaw’s Modus metrology software.
2D vision measuring system
The new 2D Quick Image QI-C Series features a 32 x 24 mm field of view, fully motorized X, Y stage and the latest version QIPak software, providing automated measurements throughout the range of stage travel. The Quick Image Telecentric lens also offers depth of focus up to +/- 11 mm, allowing measurements on workpieces with multiple heights. The series is available with 0.2x magnification, measuring accuracy of 3.5 + 0.2L μm, and measuring range options of 200 x 100 mm, 200 x 170 mm and 300 x170 mm. Single-click functionality enables measurement and tolerance judgment for field of view or stitched images. This allows for automatic detection of workpiece position and orientation, batch measurement of multiple parts with the same shape, and up to 1,000 workpieces at one setting.
The TC64 roughness gauge is a new product that represents a quantum leap in the field of machine integrated quality monitoring, says the company. By analyzing surface finish on the machining centre, the manufacturer is now able to identify errors in surface finish prior to part removal and he is able to do so faster and on various contoured surfaces. For example, an operator of a five axis machining centre can now scan contours in various axes simultaneously, and do so at speeds 18x faster, neither of which are possible on conventional profilometers. Surface data such as Ra, Rz, and Rmax values are also viewed in real-time via the machine’s control and data is sampled at over 1,000 hz per second while maintaining micron accurate results and repeatability. Blum-Novotest says the roughness gauges are a first of their kind in the industry, offering integrated process control of surface finish analysis which will change the manufacturing process for many attempting to hold tight tolerances on part surface finish.
The new generation HandyScan 3D handheld scanners are 25 times faster than the previous generation and have a measurement rate of 480,000 measures/sec. The company says the new handheld scanners are 40 per cent more accurate, 35 per cent lighter and 50 per cent smaller than previous models. Multi-function buttons make for easier interaction with the software. It offers accuracy of up to 0.030 mm (0.0012 in.), and a resolution of up to 0.050 mm (0.002 in.). The scanner can be calibrated as often as required, and calibration takes about two minutes.
Optical inspection of cylinder bore surfaces
The Hommel-Etamic Toposcan is used for measuring the surface of cylinder bores larger than 60 mm in diameter. It’s capable of automatically measuring the size of porosity and blow holes, stroke reversal radius, laser pocket structures, roughness of bore walls, torn and folded metal, and cross-hatch angles. It can be used either for R&D tasks, or in the production line. Optical testing of bore surface structure characteristics and tactile measurement of surface roughness is accomplished with a compact 60 mm measuring probe. It offers optical zoom from 30 to 210 times for inspecting even the finest structures. Complete evaluation of the cylinder surface is accomplished through optical inspection and roughness measurement at any position. The numerical and graphical output of the roughness parameters and the profiles can be combined with the image evaluations in one report to provide compact and informative documentation.
The new Micromar EW micrometer range uses the same wireless data transmission technology used in the MarCal digital calipers and MarCator digital indicators. The four models offer measuring ranges of 0 - 1 in./1 - 2 in./2 - 3 in./3 - 4 in. (0 - 25/25 - 50/50 - 75/75 - 100 mm) and a 2-3 µm error limit. The stainless, carbide-tipped spindle is hardened throughout and ground, with a diameter of 6.5mm and a thread pitch of 0.5mm. The measuring force ranges from 5 to 10N. The units offer a battery life of about two years in wired mode and around six months in wireless. The Micromar 40 EWRi model adds functions such as HOLD display and tolerance indication.