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CONNECTING RODS

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Forged Steel Diesel Rod

CPU = 1.1¢ per piece

Objective: Produce high quality connecting rods at a reduced CPU.

                                            Crank Bore                        Pin Bore

  • Bore Diameter:        2.370" / 60.19mm           0.8780" / 22.30mm

  • Material:                  Forged Steel                   LF Bronze

  • Stock Removal:       0.003" / 0.076mm           0.003" / 0.076mm

  • Surface Finish:        40 Ra / 1.0mm Ra          32 Ra / 0.8mm Ra

  • Roundness:             < 0.0004" / 0.01mm        < 0.0003" / 0.0076mm

Achievement:

  • Bore Size Control:   > 2.0 Cpk                          > 2.0 Cpk

  • Surface Finish:        < 20 Ra / 0.5mm Ra         < 10 Ra / 0.25mm Ra

  • Roundness:             < 0.0001"  / 0.0025mm     < 0.00013" / 0.0033mm

  • Cycle Time:             7 - 10 secs                        7 - 10 secs

Accu-Cut Diamond Microcutting Process creates > 2.0 Cpk on Bend (0.00078" / 0.0198mm) and Twist (0.0015" / 0.038mm). Accu-Cut tool life reduced downtime and CPU by a minimum of 75%.

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Objective: Reduce tool expense, reduce downtime, reduce scrap

  • Surface Finish:          0.80 Rk / 0.5 mm Ra

Achievement: 

  • Surface Finish:          < 0.38 Rk​ / 0.4 mm Ra

  • Bore Size Control:     > 3.13 Cpk

Accu-Cut tool life:

  • Crank Bore:               300,000 pcs.

  • Pin Bore:                   500,000 - 1,000,000 pcs.

  • Cycle Time:               < 10 seconds 

Powdered Metal Diesel Rod

CPU = 1.2¢ per piece

Accu-Cut Diamond Microcutting Process creates > 2.0 Cpk on Bend (0.00078" / 0.0198mm) and Twist (0.0015" / 0.038mm). Accu-Cut tool life reduced downtime and CPU by a minimum of 75%.

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Objective: Produce high quality connecting rods at a reduced CPU.

                                             Crank Bore                  Pin Bore

  • Bore Diameter:         2.400" / 60.96mm       0.8273" / 21.01mm

  • Material:                   Powdered Metal          Bronze

  • Stock Removal:        0.003" / 0.076mm       0.003" / 0.076mm

  • Surface Finish:         40 Ra / 1.0mm Ra      32 Ra / 0.8mm Ra

  • Roundness:              < 0.0004" / 0.01mm    0.0003" / 0.0076mm

Achievement:

  • Bore Size Control:    > 2.0 Cpk                       > 2.0 Cpk

  • Surface Finish:         < 20 Ra / 0.5mm Ra      < 8 Ra / 0.2mm RA

  • Roundness:              < 0.0001" / 0.0025mm   < 0.00013" / 0.0033mm

  • Cycle Time:              < 10 seconds                 < 10 seconds

Powdered Metal Automotive Rod

CPU = $0.009 per piece

Accu-Cut Diamond Microcutting Process creates > 2.0 Cpk on Bend (0.00078" / 0.0198mm) and Twist (0.0015" / 0.038mm). Accu-Cut tool life reduced downtime and CPU by a minimum of 75%.

Objective: Reduce excessive engine noise caused by pin bore.

  • Pin Bore Material:     High tensil strength powdered metal

  • Surface Finish:          0.5mm Ra print spec

Achievement:

  • Surface Finish:       < 0.2 Rk / < 1.5 Rz / 0.4mm Ra

  • Cycle Time:            < 11 seconds

Powdered Metal Automotive Rod

CPU = 1.0¢ per piece

Accu-Cut Diamond Microcutting Process which eliminated fine boring, created performance surface textures which solved engine noise issue. 

Objective: Produce high quality connecting rods at a reduced CPU.

                                               Crank Bore                       Pin Bore

  • Bore Diameter:            2.239" / 56.87mm          1.120" / 28.45mm

  • Material:                      C70 Forged Steel           LF Bronze

  • Stock Removal:           0.003" / 0.076mm          0.003" / 0.076mm

  • Surface Finish:            4.0 Rz                            4.0 Rz                      

  • Roundness:                 0.0003" / 0.0076mm      0.0004" / 0.01mm       

Achievement:

  • Bore Size Control:       > 2.0 Cpk                        > 2.0 Cpk
  • Surface Finish:            < 2.0 Rz                          < 1.0 Rz

  • Roundness:                 < 0.00005" / 0.001mm    < 0.0001" / 0.0025mm

  • Cycle Time:                 < 12 seconds                  < 12 seconds

Forged Steel Automotive Rod

CPU = 1.3¢ per piece

Accu-Cut's process replaced the effects of fine boring!!

Accu-Cut's Diamond Microcutting Process created performance surface textures for bearing retention to improve crush specification. 

Accu-Cut pre-assembles, qualifies, and demonstrates

proof-of-principle for all tooling at no cost to you.

Contact us to learn more.

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Connecting Rod Machines

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  • High volume

  • Automatic load/unload

  • Pregage and proper orientation

  • Engineered to your specifications

  • Easily retooled for new applications

  • Built to last 30+ years

  • Click HERE to learn more about Accu-Cut Machines