US2613626A - Method of cold drawing sheet metal - Google Patents
Method of cold drawing sheet metal Download PDFInfo
- Publication number
- US2613626A US2613626A US40001A US4000148A US2613626A US 2613626 A US2613626 A US 2613626A US 40001 A US40001 A US 40001A US 4000148 A US4000148 A US 4000148A US 2613626 A US2613626 A US 2613626A
- Authority
- US
- United States
- Prior art keywords
- sheets
- per cent
- approximately
- dies
- deep drawing
- 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
- 229910052751 metal Inorganic materials 0.000 title description 7
- 239000002184 metal Substances 0.000 title description 7
- 238000000034 method Methods 0.000 title description 7
- 238000010622 cold drawing Methods 0.000 title 1
- 239000000314 lubricant Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 8
- 239000000194 fatty acid Substances 0.000 claims description 8
- 229930195729 fatty acid Natural products 0.000 claims description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 230000001464 adherent effect Effects 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims description 3
- 229910000165 zinc phosphate Inorganic materials 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical compound [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 claims 1
- 231100000935 short-term exposure limit Toxicity 0.000 claims 1
- 150000004665 fatty acids Chemical class 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005555 metalworking Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 235000010469 Glycine max Nutrition 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 101100348017 Drosophila melanogaster Nazo gene Proteins 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 241001579016 Nanoa Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/02—Water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/063—Peroxides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/18—Natural waxes, e.g. ceresin, ozocerite, bees wax, carnauba; Degras
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/08—Halogenated waxes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/02—Groups 1 or 11
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/241—Manufacturing joint-less pipes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/242—Hot working
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/243—Cold working
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/245—Soft metals, e.g. aluminum
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/246—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/247—Stainless steel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/01—Emulsions, colloids, or micelles
Definitions
- This invention relates to a method of facilitating the drawing of metal sheets.
- An object of the invention is to provide an improved method of cold working metal sheets which has the advantages of permitting faster operation of the metal working machinery, decreasing the number of imperfect articles made in the metal working process, and decreasing the number of delays occasioned by stoning the parts of the metal working machinery, such as dies and the like.
- An example of the application of this invention is in the drawing of a metal tub by use of hard ened steel dies, the final product having a diameter of around 25 inches and a depth of about 24 inches, and formed from a circular fiat sheet of steeTTfor example of type AlSl Specification C1008) having a gauge of approximately .062.
- the above bath is preferably used at a pH of 2.8 to 2.9, and at a temperature of 20 to. 25 C'., with an immersion time of 3 to 5 minutes.
- the blanks After treatment in the bath, the blanks are rinsed in cold running water and dried.
- the blanks after this treatment have a thin coating of zinc phosphate tightly adherent chemically to their surfaces.
- the coated blanks are put through three drawing operations, before each of which drawing operations the blanks are dipped or coated by swabbing, with a lubricant.
- Various types of lubricants are used, and among the most desirable are the following:
- the two lubricants just described are used to adjust the lubricating conditions, the non-pigmerited lubricant being used for adjusting the conditions of the first draw, while the pigmented type disclosed can be used only for the second and third drawing operations, sinc it is too slippery for the first draw and would permit the blank to slide between the blank holders without getting a sufficient cup formed for the subsequent operation.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Metal Extraction Processes (AREA)
- Chemical Treatment Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
Patented Oct. 14, 1952 METHOD OF GOLD DRAWING SHEET METAL Forrest Jerome Whitney, Jr., Wayne, Pa., assignor to Heintz Manufacturing Company, Philadelphia, Pa., a, corporation of Pennsylvania No Drawing. Application July 21, 1948, Serial No. 40,001
2 Claims. 1
This invention relates to a method of facilitating the drawing of metal sheets.
An object of the invention is to provide an improved method of cold working metal sheets which has the advantages of permitting faster operation of the metal working machinery, decreasing the number of imperfect articles made in the metal working process, and decreasing the number of delays occasioned by stoning the parts of the metal working machinery, such as dies and the like.
An example of the application of this invention is in the drawing of a metal tub by use of hard ened steel dies, the final product having a diameter of around 25 inches and a depth of about 24 inches, and formed from a circular fiat sheet of steeTTfor example of type AlSl Specification C1008) having a gauge of approximately .062.
Before putting the steel sheets through the drawing operations, a quantity of sheets to be coated are first washed in an alkaline bath to accomplish degreasing, after which they are rinsed in cold running water. The blanks are thereafter immersed in a bath having the following chemical composition:
Grams per liter Zinc 11.0 P205 9 to 9.5 N03 18 NazO 1.5 Ni 0.1 Cu 0.03 NaNOa 1 to 1 5 The above bath is preferably used at a pH of 2.8 to 2.9, and at a temperature of 20 to. 25 C'., with an immersion time of 3 to 5 minutes.
After treatment in the bath, the blanks are rinsed in cold running water and dried. The blanks after this treatment have a thin coating of zinc phosphate tightly adherent chemically to their surfaces.
After the phosphate coating operation, the coated blanks are put through three drawing operations, before each of which drawing operations the blanks are dipped or coated by swabbing, with a lubricant. Various types of lubricants are used, and among the most desirable are the following:
1. 1% sodium soap-99% water.
2. 2% sulphonated tallow98% water, with enough sodium hydroxide to produce a pH value of 8.
and the other of which is non-pigmented, the
two compositions following being used to adjust the lubricating conditions by addition to whichever of the three above-listed lubricants is being used.
Non-pigmented 24% animal fatty acid (lard, oil, or degras) 24% vegetable fatty acid (soy bean fatty acid) 6% solid alkali (NaOI-I) 10% chlorinated Wax Balance water.
Pigmented 24% animal fatty acid (lard, oil, or degras) 24% vegetable fatty acid (soy bean fatty acid) 6% solid alkali (NaOI-I) 10% chlorinated wax 20% pigment (talc, or inert clay) Balance water.
The two lubricants just described are used to adjust the lubricating conditions, the non-pigmerited lubricant being used for adjusting the conditions of the first draw, while the pigmented type disclosed can be used only for the second and third drawing operations, sinc it is too slippery for the first draw and would permit the blank to slide between the blank holders without getting a sufficient cup formed for the subsequent operation.
In one test operation of the type just described, 80 of the coated blanks were run through the dies, and only one of the 80 showed any evidences of pick-up by the dies, and friction was reduced as much as An astonishing and unexpected result followed the processing of the phosphate coated blanks, in that the processing of the 80 blanks was followed with drawing of an additional 70 uncoated blanks, and only one additional metal score from pick-up was observed in the 70 additional blanks, showing that the beneficial resultsvwere carried over (apparently by the dies). The results from the processing of the uncoated blanks are made all the more unusual when it is considered that in the ordinary stamping of the uncoated blanks using the same lubricants, but without previously processing a series of coated blanks, pickup occurred as frequently as every third or fourth draw, and caused bad scoring of the stampings. It was also necessary to stone the dies frequently under the previous practice because of the metal which the dies picked up from the blanks.
By using the new method and first running a series of coated blanks followed by a series of uncoated blanks, it is obvious that considerable savings in the use of the coating solution will be provided.
I claim:
1. In the cold deep drawing of steel sheets by means of dies, the steps of providing a thin chemically adherent coating of zinc phosphate on .a quantity of said sheets, applying to said quantity of sheets, a non-pigmented lubricant containing a high fatty acid radical which chemically reacts with said coating, cold deep drawing said quantity of sheets by the use of dies whereby there is transferred from said sheets to said dies as the deep drawing is effected material which includes at least some of the phosphate coating material and some of the product of said reaction, applying to a smaller quantity of uncoated steel sheets a non-pigmented lubricant of the same type as applied to the coated sheets, and cold deep drawing said second smaller quantity of sheets by the use of the same dies, the lubricants being selected from the group consisting of approximately one per cent sodium soap ninety-nine per cent water; approximately two per cent sulphonated tallow-ninety-eight per cent water, the pH of the lubricant being ap-, proximately 8; approximately one per cent chlorinated paraffin, forming an emulsion with approximately two per cent sodium soap, using approximately ninety-seven per cent water.
2. A process as defined in claim 1, the number of coated blanks being in the order of 80, and the number of uncoated blanks being in the order of 70.
FORREST JEROME WHITNEY, JR.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Name Date Mill Aug. 10, 1943 OTHER REFERENCES Number
Claims (1)
1. IN THE COLD DEEP DRAWING OF STEL SHEETS BY MEANS OF DIES, THE STEPS OF PROVIDING A THIN CHEMICALLY ADHERENT COATING OF ZINC PHOSPHATE ON A QUANTITY OF SAID SHEETS, APPLYING TO SAID QUANTITY OF SHEETS, A NON-PIGMENTED LUBRICANT CONTAINING A HIGH FATTY ACID RADICAL WHICH CHEMICALLY REACTS WITH SAID COATING, COLD DEEP DRAWING SAID QUANTITY OF SHEETS BY THE USE OF DIES WHEREBY THERE IS TRANSFERRED FROM SAID SHEETS TO SAID DIES AS THE DEEP DRAWING IS EFFECTED MATERIAL WHICH INCLUDES AT LEAST SOME OF THE PHOSPHATE COATING MATERIAL AND SOME OF THE PRODUCT OF SAID REACTION, APPLYING TO A SMALLER QUANTITY OF UNCOATED STEEL SHEETS A NON-PIGMENTED LUBRICANT OF THE SAME TYPE AS APPLIED TO THE COATED SHEETS, AND COLD DEEP DRAWING SAID SECOND SMALLER QUANTITY OF SHEETS BY THE USE OF THE SAME DIES, THE LUBRICANTS BEING SELECTED FROM THE GROUP CONSISTING OF APPROXIMATELY ONE PER CENT SODIUM SOAPNINETY-NINE PER CENT WATER; APPROXIMATELY TWO PER CENT SULPHONATED TALLOW-NINETY-EIGHT PER CENT WATER, THE PH OF THE LUBRICANT BEING APPROXIMATELY 8; APPROXIMATELY ONE PER CENT CHLORINATED PARAFFIN, FORMING AN EMULSION WITH APPROXIMATELY TWO PER CENT SODIUM SOAP USING APPROXIMATELY NINETY-SEVEN PER CENT WATER.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40001A US2613626A (en) | 1948-07-21 | 1948-07-21 | Method of cold drawing sheet metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40001A US2613626A (en) | 1948-07-21 | 1948-07-21 | Method of cold drawing sheet metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2613626A true US2613626A (en) | 1952-10-14 |
Family
ID=21908522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US40001A Expired - Lifetime US2613626A (en) | 1948-07-21 | 1948-07-21 | Method of cold drawing sheet metal |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2613626A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739128A (en) * | 1951-05-23 | 1956-03-20 | Nicholas M Adams | Film forming compositions |
| US2776255A (en) * | 1955-07-07 | 1957-01-01 | Rockwell Spring & Axle Co | Method of making formed, plated articles |
| US2831782A (en) * | 1954-05-21 | 1958-04-22 | Dow Chemical Co | Lubricants for coating and working light metals |
| US2849107A (en) * | 1954-01-26 | 1958-08-26 | Parker Rust Proof Co | Lubricant for spraying on chemically coated metal surfaces |
| US3098294A (en) * | 1960-11-30 | 1963-07-23 | Arthur M Shapiro | Lubricant for metal forming process |
| US3105400A (en) * | 1954-05-10 | 1963-10-01 | Aluminum Co Of America | Rolling of aluminous metal foil |
| US4752405A (en) * | 1986-05-01 | 1988-06-21 | Coral Chemical Company | Metal working lubricant |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2326387A (en) * | 1940-07-31 | 1943-08-10 | Montgomery H A Co | Drawing composition and method of making the same |
-
1948
- 1948-07-21 US US40001A patent/US2613626A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2326387A (en) * | 1940-07-31 | 1943-08-10 | Montgomery H A Co | Drawing composition and method of making the same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2739128A (en) * | 1951-05-23 | 1956-03-20 | Nicholas M Adams | Film forming compositions |
| US2849107A (en) * | 1954-01-26 | 1958-08-26 | Parker Rust Proof Co | Lubricant for spraying on chemically coated metal surfaces |
| US3105400A (en) * | 1954-05-10 | 1963-10-01 | Aluminum Co Of America | Rolling of aluminous metal foil |
| US2831782A (en) * | 1954-05-21 | 1958-04-22 | Dow Chemical Co | Lubricants for coating and working light metals |
| US2776255A (en) * | 1955-07-07 | 1957-01-01 | Rockwell Spring & Axle Co | Method of making formed, plated articles |
| US3098294A (en) * | 1960-11-30 | 1963-07-23 | Arthur M Shapiro | Lubricant for metal forming process |
| US4752405A (en) * | 1986-05-01 | 1988-06-21 | Coral Chemical Company | Metal working lubricant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2472393A (en) | Process and bath for copper coating ferrous metal | |
| US2622993A (en) | Process of lubricating metal surface and article resulting therefrom | |
| US4147639A (en) | Lubricant for forming metals at elevated temperatures | |
| CA1110611A (en) | Preparation of metals for cold forming | |
| US2613626A (en) | Method of cold drawing sheet metal | |
| EP0412788B1 (en) | Lubrication method for cold plastic working of metallic materials | |
| US2357269A (en) | Art of treating ferrous metal articles | |
| JPS61269929A (en) | Lubricating treatment of metallic material | |
| US2578585A (en) | Composition for forming a dry, homogeneous, self-adherent lubricating film on metal stock | |
| JPS61291687A (en) | Lubricant for cold forging aluminum | |
| US3392117A (en) | Lubricant composition and method | |
| US5367903A (en) | Process for improving the drawability of a metal sheet or sheet blank | |
| US4285223A (en) | Phosphate and ester coating method | |
| US2296844A (en) | Friction part and method of treating | |
| JP2002264252A (en) | Metallic material for plastic working having inclined two-layer lubricating film and method for producing the same | |
| US2266379A (en) | Extreme pressure lubrication | |
| US2254492A (en) | Method of removing foreign matter from metal articles | |
| US3192619A (en) | Lubricant coating composition and method of cold forming metals | |
| US2329731A (en) | Drawing lubricant | |
| US2152396A (en) | Wire drawing lubricant and method | |
| US3433038A (en) | Cold working metal | |
| JPS62297394A (en) | Mold-releasing lubricant for forging | |
| US2522176A (en) | Drawing ferrous wire and other metal-working processes | |
| US2672976A (en) | Drawing lubricant compositions | |
| US2876148A (en) | Cold working metals coated with colloidal sulfur |