Studer, a member of United Grinding Group, recently organised its first Internal Cylindrical Grinding seminars in India at three cities, namely Pune, Chennai, and Gurgaon. The seminar served as a platform to learn the latest technologies in internal cylindrical grinding and learn about their applications in the automotive & suppliers, energy, medical, aerospace, tooling, machine manufacturers, die & mould, precision engineering and transport and heavy industry sectors.
The one-day seminar organised by Studer in three cities was conducted by Dalibor Dordic, Dy Director, Sales, Fritz Studer, who presented the application of Studer internal grinding machines. He gave a brief history on the United Grinding Group and its members and the acquisition of Combitec based in Biel, Switzerland by Fritz Studer. He also categorised Studer grinding machines into four parts based on their application requirements.
Basic internal grinding
The models S110, S120 are categorised under basic internal grinding because of their compact machine concept. In S110, the workpiece is moved on the cross-slide, while the grinding spindles are mounted in a fixed position to the base of the machine. This guarantees stability, offers good accessibility for set-up or workpiece change, and is easily automatable. It's an ideal machine for chuck applications for individual components up to small-batch production. Unlike S110, S120 is designed for larger and longer workpieces. The ideal grinding machine for internal, face, thread and taper grinding on long workpieces are up to approx 650 mm in length, e.g. for the machining of the ends of machine spindles.
Internal universal grinding
The internal universal grinding machines S131, S141 and S151 are designed as highly flexible machines, which are capable of both internal and external grinding as well as form, noncircular and thread grinding. Not only can they be used to machine a large range of parts, but they can also cover the entire diameter range in external grinding. The capability of the S131, S141 and S151 to execute both internal and external grinding operations is thanks to the axis concept, a sophisticated arrangement of spindles, dressers, and a grinding spindle turret with integrated swivel axis, which allows the use of maximum four grinding spindles with up to two external grinding wheels and a universal measuring probe. A new arrangement of the dressing position and reversal of the
grinding direction during external machining ensure that the S131, S141 and S151 can cover the entire diameter range in external grinding.
Internal radius grinding
The main fields of application of the new S121, S131 and S141 radius grinding machines are in the manufacture of dies – especially in the packaging industry – where tungsten carbide and ceramic are primarily processed, and the production of hydraulic components such as axial pump pistons, guide plates and housings made of hardened steel, cast iron and copper. Other fields are the production of complex workpieces with several tapers greater than 20° to 90° in a single clamping, where the main applications are in watch and medical technology with extra-hard materials such as industrial ceramic, sapphire and tungsten carbide, as well as the manufacture of human implants for shoulders, knees and hips from ceramic and titanium.
Internal production grinding
Manufacturing companies cannot cut corners in production processes, which are optimised down to the smallest detail. The focus is on the process. In order to produce a component in a specified time and quality, each part of the process must have the optimum solution. In this regard, STUDER S122 provides this solution. It is a production internal cylindrical grinding machine for the production of small to medium sized workpieces in small and large-scale production. This assures improvement in productivity for the companies who purchases it. With a swing diameter of 220 mm, this production grinding machine can machine workpieces up to 120 mm in length.
Moving ahead, Dordic mentioned, “Studer will showcase S121 for gear grinding application in the automotive industry and S11 for needle grinding with integrated loading system, during the upcoming IMTEX 2017.”
Attended by over 50 professionals in all three cities, the seminar provided a knowledge platform to find the right solution for the right application requirements in the internal cylindrical grinding. Courtesy: United Grinding