Technologies

Grinding is a type of machining which is different from sharpening and milling operations. The difference primarily lies in clearance allowances that must be provided — in most cases it comes to mere fractions of one hundredth of a millimeter or to one or two hundredth of a millimeter. The properties of machined metals should also be taken into account — as a rule, they include tempered steel, carbides, ceramics. Their common feature implies high attention to details while grinding because even standard operations depend on multiple factors (steel grade, heat-treatment method and hardness as well as skills, experience and preciseness of an operator, structural rigidity and tool life). Besides, surface roughness is an essential parameter. In some cases we can provide Ra=0,8 and even Ra=0,4 by fine sharpening and finish milling. But at the full-scale production of pieces with the above-mentioned roughness it can take significantly more human and financial resources to fine-tune the tool overhang and diameter as well as to replace or recondition it.

We apply the following machining types:

• external cylindrical grinding;
• centerless grinding;
• flat grinding;
• coordinate grinding;
• internal cylindrical grinding.

EDM aims at changing the shape, size, roughness and surface properties of a workpiece when exposed to electric charges resulted in electric erosion, thus expanding production capacity. The list of our equipment operating on EDM principle includes:

• Wire-cutting machines which allow us to machine complex-shaped contour in the areas inaccessible for a cutting tool, combined with high frequency;
• Punching machines for closed slots with minimal radii at all contact points.

Milling is a complete cycle performance — from 3D modeling and control software development to the end product — at three- and five-axis CNC machines.

Maximum milling area can go up to 1370×630 мм. Maximum weight — 1500 kg.

The optimal choice of turning equipment can oftentimes ensure a significant gain in performance and exclude additional re-tooling and other operations. Application of Y — axis with a driven tool can particularly improve the process.

Maximum external machining diameter — 457 mm. Maximum sharpening length — 584 mm.