Wear-resistant punching tools with sintered iron guide

For Punching tools applies to classic materials for Sliding guides like bronze or steel the sintered iron as a strong alternative. Thanks to its porosity, it is suitable in the die making of Meusburger very good for use as a bearings. In addition, sintered iron is wear-resistant and offers very good emergency running properties. 

Sintered iron is one of the oldest products in the Powder metallurgy. During its production, metal powder with a precisely defined grain size and composition is first pressed into shape under high pressure. This creates the so-called green compact. During the subsequent sintering process, it is compacted and hardened below the melting temperature. In this process, the workpiece receives the required Strength and porosity. Finally, fine-tuning is done to ensure high dimensional accuracy of the sliding guide elements.

Punching tools with sliding guide with oil depot

The porous material sintered iron provides a significant advantage in sliding guides compared to solid sliding bearings. Oil collects in the pores so that they serve as an oil depot. The combination with the solid lubricant MoS2 in the sintered layer gives users optimal gliding properties.

Igus Isense plain bearings are now available for five materials

The friction causes the oil to reach the sliding surface. Through the Capillary action When it comes to a standstill, it withdraws back into the sintered layer. In addition, the sliding guides made of sintered iron offer high wear resistance and very good emergency running properties. No additional lubrication is required.

Guide bushes and flat guide rails

For the bushings, 1.0503 with 50 HRC steel is used as Carrier material for the sintered layer used. An optimal diffusion zone between the steel jacket and the sintered layer guarantees an inseparable molecular connection. Guide bushes are used in the punching tool with stroke speeds of approx. 50 m / min when medium lateral forces occur.

The sockets are available with a collar (E 5122) in 20 to 63 mm diameters and for gluing (E 5152) in 12 to 40 mm diameters. The fully synthetic high-performance oil VLS 250 is suitable for relubrication.

Especially in Transfer and large tool making Flat guide rails made of steel with a sintered sliding surface are used. They offer the highest surface pressures and maximum sliding speeds. The E 6110 SIN strips can be cut to length and processed as required and are available from stock.