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Isostatic technique wins cylinder liner project
lsostatic technique wins cylinder liner project
N
orth American components manufacturer TecSyn PMP (Powder Metal Products) Inc is using a patented cold isostatic compaction process to produce cylinder liners for aluminium engine blocks.
FIGURE 1: Tecsyn uses pressures of up to 400 000 kPa is in its hydraulic compaction process. It says this gives parts with greater strength and closer tolerances than conventional dry bag presses.
noise attenuation characteristics of the liner material and its geometric features; 0 scuff resistance; 0 weight reduction; l less machining because of their near-net shape; and, l high metallurgical flexibility. TecSyn has North American rights to the CIPS process and has been developing it for several year’s in its Huntsville plant. It has incorporated automation and computerization into the production process to make it a high pressure, high speed process for large volume manufacturing. The company says the benefits of its relined process include the ability to produce larger parts than conventional powder metallurgy processes with controlled, uniform densities. It allows flanges and undercuts on multiple diameters and has a minimal ejection force after compaction. TecSyn PMP has been aggressively applying this manufacturing technology to a wide range of cylindrical shapes such as DC electric motor housings, vibration mount inserts, various automotive components and parts requiring improved electrical magnetic properties. TecSyn PMP is a wholly owned subsidiary of TecSyn International Inc, a Canadian public company. H 0
This strategic alliance, announced in July 1994, has a large market potential for TecSyn in the automotive and small engine market. With increasing moves to legislate for lower pollution from new engines, car manufacturers are turning to aluminium to produce lighter and, hence, more fuel efficient engines. Generally steel sleeves are still required, but TecSyn believe its use of CIPS technology will enable a switch to an aluminum product. TecSyn says its liners provide a number of potential benefits: better bonding propefiies in aluminum block engine applications compared with cast iron liner; low cylinder surface roughness to improve emissions, oil consumption and blowby; lower friction and wear characteristics of the power cylinder system;
The company, based in Huntsville, Alabama, is using the CIPS technique (dry bag cold isostatic compaction technique) originally developed in Sweden, by a subsidiary of Hogan% for the potentially large volume project. Its lightweight, durable liners will be sold through AE Goetze, a major worldwide tier 1 combustion cylinder system supplier to the automotive and small engine manufacturers. AE Goetze is a member of the Piston Products Group of T&N plc.
FlGURE 2: Wall thicknesses of just 1 .OO mm and solid bars up to 100 mm in diameter and lengths up to 250 mm are possible while maintaining fight tolerance.
8
MPR March
1995
FlGURE
3: TecSyn
is working
to develop
a range
of cylindrical components.
N
orth American components manufacturer TecSyn PMP (Powder Metal Products) Inc is using a patented cold isostatic compaction process to produce cylinder liners for aluminium engine blocks.
FIGURE 1: Tecsyn uses pressures of up to 400 000 kPa is in its hydraulic compaction process. It says this gives parts with greater strength and closer tolerances than conventional dry bag presses.
noise attenuation characteristics of the liner material and its geometric features; 0 scuff resistance; 0 weight reduction; l less machining because of their near-net shape; and, l high metallurgical flexibility. TecSyn has North American rights to the CIPS process and has been developing it for several year’s in its Huntsville plant. It has incorporated automation and computerization into the production process to make it a high pressure, high speed process for large volume manufacturing. The company says the benefits of its relined process include the ability to produce larger parts than conventional powder metallurgy processes with controlled, uniform densities. It allows flanges and undercuts on multiple diameters and has a minimal ejection force after compaction. TecSyn PMP has been aggressively applying this manufacturing technology to a wide range of cylindrical shapes such as DC electric motor housings, vibration mount inserts, various automotive components and parts requiring improved electrical magnetic properties. TecSyn PMP is a wholly owned subsidiary of TecSyn International Inc, a Canadian public company. H 0
This strategic alliance, announced in July 1994, has a large market potential for TecSyn in the automotive and small engine market. With increasing moves to legislate for lower pollution from new engines, car manufacturers are turning to aluminium to produce lighter and, hence, more fuel efficient engines. Generally steel sleeves are still required, but TecSyn believe its use of CIPS technology will enable a switch to an aluminum product. TecSyn says its liners provide a number of potential benefits: better bonding propefiies in aluminum block engine applications compared with cast iron liner; low cylinder surface roughness to improve emissions, oil consumption and blowby; lower friction and wear characteristics of the power cylinder system;
The company, based in Huntsville, Alabama, is using the CIPS technique (dry bag cold isostatic compaction technique) originally developed in Sweden, by a subsidiary of Hogan% for the potentially large volume project. Its lightweight, durable liners will be sold through AE Goetze, a major worldwide tier 1 combustion cylinder system supplier to the automotive and small engine manufacturers. AE Goetze is a member of the Piston Products Group of T&N plc.
FlGURE 2: Wall thicknesses of just 1 .OO mm and solid bars up to 100 mm in diameter and lengths up to 250 mm are possible while maintaining fight tolerance.
8
MPR March
1995
FlGURE
3: TecSyn
is working
to develop
a range
of cylindrical components.