|
|
 |
|
|
|
|
|
|
A new family of ISCAR turning inserts brings SUMO TEC performance and durability to CVD and DVD carbide grades. In identical tests in a variety of turning applications, the inserts outlasted their nearest competitors by 26 to 288 percent.
Key to the longer life is the SUMO TEC special treatment, introduced in late 07 in a limited range of milling inserts, that smoothes the coated surface and reduces surface tension stresses in insert coatings. These lead to cooler running, better chipping resistance, reduced built up edge and reliably longer edge life in all workpiece materials.
During the alumina coating process, internal tension stresses sometimes cause cracks. The new SUMO TEC treatment induces compression stresses, which help to seal those cracks.
The seven new SUMO TEC turning grades include two for cast iron; three for steel and one for heat-resistant alloys and hardened steel.
All the most popular insert geometries are available from stock today, with new geometries being added regularly. ISCAR also plans to add new grades as well.
Heres the lineup of grade availability:
FOR CAST IRON
IC5005, with a hard substrate, MTCVD TiCN and thick Al2O3 coating, is recommended mainly for nodular cast iron. It also handles other cast irons at medium to high cutting speeds at stable or slightly unstable conditions. This grade may be used in hard cast irons when exceptionally high wear resistance is required.
IC5010, featuring a tough substrate, MTCVD TiCN and thick Al2O3 coating, targets grey cast iron. It is recommended for interrupted cuts and unstable turning conditions in other materials.
FOR STEEL
IC8150, consisting of a very hard substrate with a cobalt enriched outer layer, MTCVD TiCN and a thick alpha Al2O3 CVD coating.
Featuring excellent thermal stability and resistance to chipping, this grade is recommended for high speed turning of steel under stable or slightly unstable conditions. It can also handle stainless steel and interrupted cuts in nodular cast iron.
IC8250, a tough substrate with the same outer layers. It features excellent thermal stability and resistance to plastic deformation and is recommended for general machining of alloyed and stainless steel in a wide range of conditions.
IC8350, featuring a very tough substrate under the same outer layers. It delivers excellent shock resistance and good wear resistance on alloyed and stainless steel.
FOR ALLOYS, STAINLESS STEEL AND HARDENED STEEL
IC807, with a tough submicron substrate under a TiAlN PVD coating, is suitable for turning heat resistant alloys, austenitic stainless steel and hard steel at low to medium cutting speeds. In a test against its nearest competitor on all three materials, the improvement in tool life was up to 150%.
Key Test Results
Prior to launching the new SUMO TEC turning tool line, ISCAR tested all grades against their nearest competitors in a variety of applications. Here are the key results for grades 5005 and 5010 in cast iron:
Application Machining Conditions Tool Life Improvement
Vc (m/min)/f (mm/rev) (%)
Grey CI cylinder sleeve 500/0.7 28
Grey CI brake body 230/0.25 46
Grey CI brake drum 300/0.3 78/233 (2 competitors)
Alloy CI piston 370/0.25 54
Grey CI brake drum 200/0.4 52
The improvement was 47% in SAE 1045 steel and 250% in 4140.
In forging steel, the new SUMO TEC insert lasted twice as long.
|
|
|
|
|