Impression Forging

Clifford-Jacobs has extensive experience producing parts. Steel forging is an extremely effective method for producing a wide variety of challenging 3-D shapes–from the smallest part to those weighing many tons. Through our impression forging process, we are able to process most commercially available steels, including carbon and alloy steels; tool steels; stainless, aluminum alloys; and titanium alloys.

impression_3 Clifford-Jacobs takes pride in the speed and accuracy with which we reply to requests for quo tes. In addition, we offer short to medium runs, from twenty-five to 15,000 pieces annually, and we have a seasoned, expert staff with a CNC-equipped die shop on-site.

To expedite answers to your questions, please have the following information at hand:

impression_1

  • Material grade
  • EAU and Delivery quantity
  • Date requested
  • A good-quality, fully dimensioned print

 

If required, please include any specifications you may have for machining, heat treating, and testing.impression_2

Clifford-Jacobs Forging can produce standard or custom forgings within the following parameters:

  • From 5 pounds to 800 pounds
  • Up to 30 inches in diameter
  • Up to 50 inches in length
  • Up to 18 inches in spindle height
  • Annual quantity of 25 to 15,000 pieces

Forging is the application of thermal and mechanical energy to steel bars, billets and ingots to cause the material to change shape while in the solid state. This is a different process than casting, by which
metal is melted and poured into a mold in the liquid or molten state. Forging offers uniformity of composition and structure. Steel forgings have minimum variation in machinability and mechanical properties. Forging strengthens the resulting steel product, particularly in terms of impact toughness.

Tolerances and Materials
Thickness and Straightness Tolerances
Maximum Outside Diameter 3.50″ 6.13″ 7.88″ 11.25″ 25.13″ up to 30″
Thickness +0.03″/-0.03″ +0.06″/-0.03″ +0.06″/-0.03″ +0.09″/-0.03″ +0.13″/-0.03″
Straightness 0.03″ 0.04″ 0.05″ 0.06″ to 20″ 0.06″ to 30″
External and Internal Tolerances
Maximum Outside Diameter 3.91″ 11.63″ 11.72″ 15.63″ 15.63″ up to 30″
+EX, -INT 0.03″ 0.06″ 0.09″ 0.13″ 0.16″
Maximum Outside Diameter 11.63″ 14.97″ 18.28″ 18.28″ and up 18.28″ and up
-EX, +INT 0.03″ 0.04″ 0.05″ 0.06″ 0.06″
Weight and Mismatch Tolerances
3 to 5 pounds Up to 25 pounds Up to 50 pounds Up to 100 pounds Up to 300 pounds Up to 800 pounds
0.03″ 0.04″ 0.05″ 0.06″ 0.06″ up to 20″ 0.09″ up to 30″
Specifications listed are only guidelines. To learn what Clifford-Jacobs Forging can do for you, please ask.
CARBON, ALLOY, AND TOOL STEEL1018, 1020, 1021, 1022, 1026, 1029, 1030, 1040, 1045, 1050, 1141,
1146, 3310, 4130, 4140, 4142, 4145, 4150, 4320, 4340, 4620, 4820, 8620,
8622, 8630, 8822, 9310, A182F11, A182F22, A182F91, A336F1, A336F22A,
A350LF2, A350LF3, MIL-S 23284C1, MIL-S 23284CL2, H-13, INCONEL® 625,
SA182
VAR MATERIAL4320 (AMS 2300), 4330 (AMS 6411), 4340 (AMS 6414), 9310 (AMS 6265),
PYROWEAR® 53 (AMS 6308), NITRALLOY N (AMS 6475), 9-4-30 (AMS 6526),
PYROWEAR® 675
BEARING QUALITY 4130, 4140, 4320, 4340, 4820, 8620, 8822, 8825, 52100 VIM VAR IUTH12 MOd. (BMS 7-223), 9310 (BMS 7-249), 4340 (BMS 7-250), LESCO® 53,
PYROWEAR® 53 (HMS 6-1288)
AIRCRAFT QUALITY4130 (AMS 6348), 4140 (AMS 6382), 4320 (AMS 2301), 4330V (AMS 6427),
4340 (AMS 2301), 4340 (AMS 6415), 4340 (AMS-S 5000), 4820 (AMS 2301),
9310 (AMS 6260), 9315 (AMS 6263), 17-22-AS (AMS 6302)
STAINLESS STEEL304, 304L, 316, 316L, 405, 410, 17-4PH, 15-5PH
CALCIUM TREATED4130, 4140, 4150, 4340, 8620 CUSTOM GRADESCaterpillar, General Electric, Westinghouse, Boeing Aerospace
The above grades can be ordered to meet acceptable AMS, ASTM, or military specifications as needed. Clifford-Jacobs forges most commercially available variations of these grades.

Tolerances and Materials

Equipment List