EP1386118B1 - Verfahren zum endbearbeiten einer verriegelungsfläche einer selbstlade-handfeuerwaffe sowie hierdurch erhaltene verriegelungsfläche - Google Patents

Verfahren zum endbearbeiten einer verriegelungsfläche einer selbstlade-handfeuerwaffe sowie hierdurch erhaltene verriegelungsfläche Download PDF

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Publication number
EP1386118B1
EP1386118B1 EP02730132A EP02730132A EP1386118B1 EP 1386118 B1 EP1386118 B1 EP 1386118B1 EP 02730132 A EP02730132 A EP 02730132A EP 02730132 A EP02730132 A EP 02730132A EP 1386118 B1 EP1386118 B1 EP 1386118B1
Authority
EP
European Patent Office
Prior art keywords
locking surface
hardened
slide
laser beam
locking
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
Application number
EP02730132A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1386118A1 (de
Inventor
Helmut Weldle
Hans-Peter Bantle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heckler und Koch GmbH
Original Assignee
Heckler und Koch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heckler und Koch GmbH filed Critical Heckler und Koch GmbH
Publication of EP1386118A1 publication Critical patent/EP1386118A1/de
Application granted granted Critical
Publication of EP1386118B1 publication Critical patent/EP1386118B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/66—Breech housings or frames; Receivers

Definitions

  • the invention relates to a method for finishing an already having the final shape locking surface on a self-loading handgun, in particular that locking surface from the front (facing backwards) Transverse area of the ejection window the carriage of a self-loading pistol is formed; moreover, also a manufactured by such a method Verniegelungs phenomenon.
  • the sled could also be found in the area of its ejection window front surface, So its locking surface, harden and then grind if necessary. It will but in any case its rust protection coating impaired. It is the sled so only after curing burnish, since the weapon is otherwise exposed, irregular, blank spot on top, not only unsightly, but also rusty would.
  • Modern ordnance weapons are usually nitrocarburized and then oxidized, creating a black, extraordinary hard, resistant antirust coating is created.
  • This coating is significantly more abrasion resistant and chemical more stable than a blacking. It does, however thermally at such a high temperature that an approximately previously carefully adjusted by hardening material structure at the locking surface by the thermal Blackening treatment would be disturbed. Also an afterthought Hardening, ie hardening after this blackening treatment, is not appropriate as this is the blackening layer in the curing area would discolour. By the then most necessary grinding becomes part of the Blackening layer removed anyway.
  • the invention aims at the above Solve problems quickly and inexpensively.
  • This laser beam can be set to very low energy; but due to its high concentration, it leads to a local overheating in a narrow area.
  • the laser beam thus generates a point of impact high, sufficient for curing temperature, however falls off very quickly outside of this point. That the point of impact surrounding material carries heat rapidly and so fast that quenching does not is required. Unexpectedly, there is no delay the locking surface.
  • the laser beam directly on to be hardened locking surface scans the laser beam only one - within the locking surface running - line down, then this takes Curing rapidly on either side of this line. On the other hand, he palpates the entire surface to be hardened This can overheat and cool off too slowly. An undefined crystal mixture in the material would be the episode.
  • the hardened area can be very narrow. Despite the Uneven heating causes the material to distort Not. Rather, the locking surface retains its Form and therefore requires no post-processing.
  • the laser beam is preferably inclined at an angle aligned to the locking surface (claim 2), especially preferably at an angle of about 45 ° (claim 3). It is advantageous if he is from behind and below impinges on the lower edge of the locking surface (The slide is horizontal as when closing, the Firing direction points forward).
  • the laser beam leaves on the material surface, on he hits, possibly a line-like marking, which is not disturbing. Is this material surface, however anti-rust treatment, then the rustproofing layer impaired or even destroyed. It becomes according to the invention Therefore, preferably, the laser beam on the material surface to judge from the outside of the weapon is not visible (claim 4).
  • the material surface opposite outer slide surface can in almost arbitrarily rustproof treated, because the beam intensity and the discharge frequency of the Lasers can set so that he rust-protected Do not apply the surface to a rust-proofing coating Temperature heats up. This laser-hardened Edge is anyway the highest loaded area.
  • the invention achieves their target through a locking surface on a self-loading handgun, in particular locking surface the front of the ejector window of the carriage Self-loading pistol, with a by a method according to one of claims 1 to 4 laser-hardened area.
  • the locking surface is on a carriage provided with nitrocarburized and oxidized outer surface (Claim 6).
  • the inventively hardened locking surface is for carriage material for this purpose preferably by a in the structure the wedge material formed wedge-shaped Material gusset continued. This one has two exposed, extending from the lower edge of the locking surface Surfaces, one of which is up to about Upper edge of the locking surface and the other on the underside of the carriage extends forward. These both surfaces are due to the material of the carriage connected along a microstructure transition region (Claim 7).
  • the two exposed surfaces extend of the cured material gusset about 1 to 1.5 mm forward and upward from the lower edge of the locking surface way (claim 8).
  • the width of these surfaces exceeds So never the height of the locking surface and therefore never flows into the upper, blackened outer surface the weapon.
  • An average, preferred value the thickness of the hardening layer is 0.5 mm in the weft direction and 1.0 mm perpendicular thereto (in the locking surface).
  • the carriage itself consists essentially of tough High-alloy steel (claim 9), which is already uncured applying the required durability for him. Especially suitable for example is 42CrMoS4. As aftertreatment the finished carriage is in the frame a nitrocarburized heat treatment and black oxidation and then according to the invention laser-hardened its locking surface.
  • Fig. 1 shows the carriage 1 of a self-loading pistol, wherein the weft direction points to the left.
  • the carriage 1 consists essentially of 42 CrMoS 4 and has outer surfaces 3 which are blackened by heat treatment.
  • In its upper carriage wall 9 there is an upward-pointing ejection opening 4, which is delimited to the front by a vertical locking surface 5 extending transversely to the firing direction. The latter sits on a complementary locking lug of a barrel (not shown) when the pistol is ready to fire.
  • the height of the locking surface is preferably equal to the thickness of the upper carriage wall.
  • the locking surface 5 closes the ejection opening 4 in the carriage 1 from the front.
  • a laser of a known type is so aligned that the laser beam in the direction of the arrow 15 runs towards the carriage 1 and across the image plane is postponed; preferably at a feed rate of about several 100 mm / minute.
  • the average power the laser is preferably a few 100 W, the pulse duration preferably a few milliseconds, and the frequency preferably about 100-150 Hz.
  • This treatment leaves no visible from the outside Traces. It leads to a gore-shaped hardened area 11 in the material of the upper carriage wall 9 - a Area that faces forward through an oblique, clearly outlined flat transition area 13, back through the lower part of the locking surface 5 and down through a part of the lower surface 7 of the upper Carriage wall 9 is limited.
  • the carriage material 4 lies in the laser-hardened gore-shaped region 11 as a finely structured, martensitic structure.
  • the invention has been particularly in a self-loading pistol but covers all self-loading weapons, where an overloaded locking surface subsequently should be hardened.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Articles (AREA)
  • Emergency Lowering Means (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Finishing Walls (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Lock And Its Accessories (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Laser Beam Processing (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
EP02730132A 2001-05-10 2002-04-09 Verfahren zum endbearbeiten einer verriegelungsfläche einer selbstlade-handfeuerwaffe sowie hierdurch erhaltene verriegelungsfläche Expired - Lifetime EP1386118B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10122663 2001-05-10
DE10122663A DE10122663C1 (de) 2001-05-10 2001-05-10 Verfahren zum Endbearbeiten einer Verriegelungsfläche einer Selbstlade-Handfeuerwaffe sowie hierdurch erhaltene Verriegelunsfläche
PCT/EP2002/003954 WO2002090862A1 (de) 2001-05-10 2002-04-09 Verfahren zum endbearbeiten einer verriegelungsfläche einer selbstlade-handfeuerwaffe sowie hierdurch erhaltene verriegelungsfläche

Publications (2)

Publication Number Publication Date
EP1386118A1 EP1386118A1 (de) 2004-02-04
EP1386118B1 true EP1386118B1 (de) 2005-09-14

Family

ID=7684254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02730132A Expired - Lifetime EP1386118B1 (de) 2001-05-10 2002-04-09 Verfahren zum endbearbeiten einer verriegelungsfläche einer selbstlade-handfeuerwaffe sowie hierdurch erhaltene verriegelungsfläche

Country Status (11)

Country Link
US (1) US20050016639A1 (pt)
EP (1) EP1386118B1 (pt)
KR (1) KR20030094390A (pt)
AT (1) ATE304691T1 (pt)
CA (1) CA2445016A1 (pt)
DE (2) DE10122663C1 (pt)
DK (1) DK1386118T3 (pt)
ES (1) ES2249577T3 (pt)
PT (1) PT1386118E (pt)
WO (1) WO2002090862A1 (pt)
ZA (1) ZA200308688B (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1717539B1 (de) * 2005-04-26 2008-11-05 Umarex Sportwaffen GmbH & Co. KG Verfahren zur Herstellung eines Verschlussschlittens einer Schusswaffe
US7216450B2 (en) 2005-10-17 2007-05-15 Dov Pikielny Frame assembly of handgun with different hardnesses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110223A (en) * 1960-07-21 1963-11-12 Stuart A Schlappich Reconditioned firearms
FI73519C (fi) * 1986-07-15 1987-10-09 Sako Valmet Oy Laoda av slutstycke och mothaoll foer skjutvapen.
SE508696C2 (sv) * 1995-08-23 1998-10-26 Rheinmetall Ind Ag Draget vapenrör samt förfarande för framställning av sådant rör
DE19741028C1 (de) * 1997-09-18 1998-11-05 Rheinmetall Ind Ag Vorrichtung zum Härten der Innenkontur eines Waffenrohres mit Laserstrahlung
DE19918794C2 (de) * 1999-04-26 2002-06-27 Rheinmetall W & M Gmbh Verfahren zur Herstellung eines Waffenrohres
DE10137776C1 (de) * 2001-08-02 2003-04-17 Fraunhofer Ges Forschung Verfahren zur Erzeugung von verschleissbeständigen Randschichten
EP1403609A1 (de) * 2002-09-18 2004-03-31 Rheinmetall W & M GmbH Verfahren zur Innenbeschichtung eines Waffenrohres

Also Published As

Publication number Publication date
DE10122663C1 (de) 2002-08-01
ZA200308688B (en) 2004-11-24
ES2249577T3 (es) 2006-04-01
DE50204267D1 (de) 2005-10-20
US20050016639A1 (en) 2005-01-27
CA2445016A1 (en) 2002-11-14
ATE304691T1 (de) 2005-09-15
PT1386118E (pt) 2005-11-30
EP1386118A1 (de) 2004-02-04
DK1386118T3 (da) 2006-01-30
WO2002090862A1 (de) 2002-11-14
KR20030094390A (ko) 2003-12-11

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