800-222-6144

PennMet 2000

PENMET-2000-logowebIntroduction

Penn Stainless Products offers a unique product for the machining industry – in stainless steel Round, Square and Hex bars. Our proprietary grades of stainless steel machining bars in 304/L and 316/L are melted superior-stainless-logoto a uniquely controlled chemistry to produce optimal machining characteristics: faster cutting speeds, reduced tool wear, and lower cost parts.

PennMet 2000 – Superior Stainless

  • Improved Machinability
  • Consistent Performance from Lot to Lot
  • Improved Surface Finish
  • Increased Feeds and Speeds
  • Superior Chip Control
  • Longer Tool Life

 

Machining Operations

 turning-web1  milling-web1 drilling-web1  threading-web1
Turning Milling Drilling Threading – Tapping
and single point
Forming – HSS
and carbide
Sawing Parting off

Improved Machinability:

improved-machinability

PennMet 2000 – A SPECIAL PROCESS FOR A SPECIAL STEEL QUALITY

  • Process applied austenitic stainless steel bar resulting in optimal machinability.
  • Meets all standard specifications requirements of ASTM & ASME for applicable grades.
  • Ladle metallurgy to control composition, amount, size, shape and distribution of nonmetallic inclusions.
  • Can machine at higher speeds and feeds – increase size of machining window.

V1000 – Machining test showing cutting speed that gives a tool lifetime of 1000mm drilled length.

drillingV1000

PennMet Treatment

  • Deoxidation during standard stainless steel melting results in comparatively large Al2O3 inclusions.
  • Typically more than 1,000,000 inclusions/lb.
  • These inclusions are very hard. For reference carbide tools are coated with Al2O3 for wear resistance.
  • PennMet treatment improves the composition, size, shape and distribution of these inclusions.

 

Benefit of PennMet at Higher Speeds

benefits-higherspeed2a

Results of PennMet 304 vs Standard 304

drillingHSS

PennMet works for drilling

turning220
0.030% Sulfur content helps but…Pre-treatment is more important

 

Problem – Higher tool wear and long production time

Solution – PM 2000 enabled the machines to increase feeds and speeds by 70% to 80% and reduce part wear. The customer saved $1.68 to $14.50 per component and increased overall productivity by 30% to 54%.

 

Sample Test A Report: Adapter, Rough OD Common 316/316L vs PennMet 316/316L

Penn Stainless Test Report – Date: 7/17/2014
Turning Rough Outside Diameter Issued by: DNL
Machine: Mazak Dual Turn 20 Machine #: 12 Test #: 1
Component: Housing Material:
PennMet 316/316L
Material:
Common 316/316L
Operation: Rough Turn OD Hardness, hB:
180 – 240
Hardness, hB:
180 – 240
% of increase
Cutting Speed 600 500 83%
RPM 1150 950 83%
Feed/rev. 0.013 0.01 77%
Depth of Cut 0.007 0.035 50%
Length of Cut 7 14 200%
Criterion tool change Flank Flank
Machine Cost/Hour $100.00 $100.00
Cutting time/component (mins) 0.47 1.47 315%
Non cutting time/component (mins) 2 2
No. of components/set of edges 25 12
Tool changing time (mins) 2 2
Total time/component (mins) 2.55 3.64 30%
Machine cost/component $4.11 $5.79 29%
Total machining cost/component $4.11 $5.79 29%
Productivity increase % 30%
Savings/component $1.68

 

Sample Test B Report: Housing, Rough Turn OD Common 316/316L vs PennMet 316/316L

Penn Stainless Test Report – Date: 7/18/2014
Turning Outside Diameter Issued by: DNL
Machine: Okuma LB 25 Machine #2 Test #1
Component: Housing Material:
PennMet 316/316L
Material:
Common 316/316L
Operation: Rough Turn OD Hardness, hB:
180 – 240
Hardness, hB:
180 – 240
% of increase
Cutting Speed 450 300 67%
RPM 215 145 67%
Feed/rev. 0.011 0.008 73%
Depth of Cut 0.15 0.1 67%
Length of Cut 10 15 150%
Criterion tool change Flank Flank
Machine Cost/Hour $100.00 $100.00
Cutting time/component (mins) 4.23 12.93 306%
Non cutting time/component (mins) 3 3
No. of components/set of edges 4 2
Tool changing time (mins) 2 2
Total time/component (mins) 7.73 16.93 54%
Machine cost/component $12.05 $26.55 55%
Total machining cost/component $12.05 $26.55 55%
Productivity increase % 54%
Savings/component $14.50

 

 

Call us at 1-800-222-6144 for more information