US2857267A - Forming dies and alloy therefor - Google Patents
Forming dies and alloy therefor Download PDFInfo
- Publication number
- US2857267A US2857267A US698335A US69833557A US2857267A US 2857267 A US2857267 A US 2857267A US 698335 A US698335 A US 698335A US 69833557 A US69833557 A US 69833557A US 2857267 A US2857267 A US 2857267A
- Authority
- US
- United States
- Prior art keywords
- alloy
- die
- forming
- dies
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910045601 alloy Inorganic materials 0.000 title claims description 36
- 239000000956 alloy Substances 0.000 title claims description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 239000010937 tungsten Substances 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 238000005242 forging Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009966 trimming Methods 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- LJAOOBNHPFKCDR-UHFFFAOYSA-K chromium(3+) trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Cr+3] LJAOOBNHPFKCDR-UHFFFAOYSA-K 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Definitions
- This invention relates to dies for use in forming materials suitable for high temperature operation and to an alloy from which such dies can be made. More particularly, the invention relates to dies and alloys from which they can be made for use in both hot and cold forming operations such as forging, sWaging and upsetting, and cold trimming and rolling.
- a metal bar or billet which has been preheated to a relatively high temperature is shaped by its being impacted between a set of dies.
- the time it takes to wear out a die through repeated hammering of hot metal into the die shape depends on the metal being formed and the material from which the die has been cut.
- the dies used in cold forming operations such as cold rolling and cold trimming are subject to wear.
- My use of the term forming includes forging, swaging, upsetting, trimming, rolling, pressing, extruding, hubbing and similar methods of shaping metals both hot and cold.
- die life The period of usefulness of a die is called die life and is generally measured by the number of pieces formed by the die before it must be repaired or scrapped.
- the ultimate cost of a die shaped product depends a great deal upon the cost of such dies. Increased die life means lower operating costs and hence lower product cost.
- Another object is to provide a vanadium containing iron base alloy from which dies having improved die life can be made.
- the alloys of the present invention are particularly characterized by improved high impact strength, wear resistance and hot hardness in addition to excellent resistance to thermal checking. These alloys which are air hardening and have a minimum hardness of 25 Rockwell C, can be cast into an ingot from about a 2800 F. melt of elements within my alloy range. In order to create material called die stock from which my improved dies can be made, the cast ingot may then itself be formed, as by forging, in a temperature range of about 2050-2100 F. After forming, I prefer to anneal my alloy by first holding it for one hour at about 1475 F. to form austenite in the alloy, then cool the die stock to about 1275 F. and hold it at that temperature for about four hours. It is then cooled to room temperature.
- Example 1 A comparison of the composition in percent by weight of a similar, commercially available alloy with that of the alloy I am disclosing in this application is as follows:
- Example 3 A specific example of the composition in percent by weight of an improved die I have used and which has shown about a 40 percent increase in die life is as follows:
- An air hardening alloy suitable for use as a forming die comprising by weight from about 0.5-0.6% carbon, 1.52.5% manganese, 1.25-2.5% silicon, 34% chromium, 0.75-1.5% tungsten, 1- 2% nickel, 0.751.5% vanadium, balance essentially iron, said alloy being characterized by high impact strength, wear resistance, hot hardness and resistance to thermal checking.
- An air hardening alloy suitable for use as a forming die comprising by weight from about 0.5-0.6% carbon, 1.72.0% manganese, 1.5-2.0% silicon, 3.25-3.75% chromium, 0.85-1.15% tungsten, 1.251.75% nickel, 0.90-
- An air hardening alloy suitable for use as a forming die comprising by weight from about 0.55% carbon, 1.8% manganese, 1.8% silicon, 3.4% chromium, 1.0% tungsten, 1.7% nickel, 1.0% vanadium, balance essentially iron,
- said alloy being characterized by high impact strength, wear resistance, hot hardness and resistance to thermal checking.
- a forming die composed of the air hardening alloy of claim 1.
- a forming die composed of the air hardening alloy of claim 2.
- a forming die composed of the air hardening alloy of claim 3.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US698335A US2857267A (en) | 1957-11-25 | 1957-11-25 | Forming dies and alloy therefor |
| BE573104A BE573104A (fr) | 1957-11-25 | 1958-11-19 | Matrices de façonnage perfectionnées et alliages pour celles-ci |
| CH6657758A CH387958A (de) | 1957-11-25 | 1958-11-25 | Lufthärtende Legierung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US698335A US2857267A (en) | 1957-11-25 | 1957-11-25 | Forming dies and alloy therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2857267A true US2857267A (en) | 1958-10-21 |
Family
ID=24804821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US698335A Expired - Lifetime US2857267A (en) | 1957-11-25 | 1957-11-25 | Forming dies and alloy therefor |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2857267A (fr) |
| BE (1) | BE573104A (fr) |
| CH (1) | CH387958A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4853181A (en) * | 1986-06-18 | 1989-08-01 | Wert David E | Hot work tool steel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2622021A (en) * | 1950-10-06 | 1952-12-16 | Gen Electric | Dies for high-temperature applications and alloy therefor |
-
1957
- 1957-11-25 US US698335A patent/US2857267A/en not_active Expired - Lifetime
-
1958
- 1958-11-19 BE BE573104A patent/BE573104A/fr unknown
- 1958-11-25 CH CH6657758A patent/CH387958A/de unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2622021A (en) * | 1950-10-06 | 1952-12-16 | Gen Electric | Dies for high-temperature applications and alloy therefor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4853181A (en) * | 1986-06-18 | 1989-08-01 | Wert David E | Hot work tool steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CH387958A (de) | 1965-02-15 |
| BE573104A (fr) | 1959-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2850380A (en) | Stainless steel | |
| US2048163A (en) | Iron-nickel-titanium alloy | |
| US4174967A (en) | Titanium carbide tool steel composition for hot-work application | |
| US3839022A (en) | Hot work tools and alloys therefor | |
| US2662010A (en) | Cast tool steel | |
| US2519406A (en) | Wrought alloy | |
| US3132937A (en) | Cast steel | |
| US2829048A (en) | High damping alloy and members prepared therefrom | |
| US3048485A (en) | High strength creep resisting alloy | |
| US2797993A (en) | Stainless steel | |
| US3128175A (en) | Low alloy, high hardness, temper resistant steel | |
| US2588007A (en) | Titanium-molybdenum-chromium alloys | |
| US3809540A (en) | Sintered steel bonded titanium carbide tool steel characterized by an improved combination of transverse rupture strength and resistance to thermal shock | |
| US2798827A (en) | Method of casting and heat treating nickel base alloys | |
| US2637672A (en) | Process of producing bolts | |
| US4173471A (en) | Age-hardenable titanium carbide tool steel | |
| US2799602A (en) | Process for producing stainless steel | |
| US2857267A (en) | Forming dies and alloy therefor | |
| US3131055A (en) | Alloy based on iron, containing nickel, chromium and aluminium, and process for obtaining same | |
| US3005705A (en) | High temperature alloys | |
| US2949355A (en) | High temperature alloy | |
| US3719476A (en) | Precipitation-hardenable stainless steel | |
| US2622021A (en) | Dies for high-temperature applications and alloy therefor | |
| US4049432A (en) | High strength ferritic alloy-D53 | |
| US3083095A (en) | Alloy steel and method |