EP0800425B1 - Verfahren zur herstellung von innenverzahnten teilen - Google Patents
Verfahren zur herstellung von innenverzahnten teilen Download PDFInfo
- Publication number
- EP0800425B1 EP0800425B1 EP95942196A EP95942196A EP0800425B1 EP 0800425 B1 EP0800425 B1 EP 0800425B1 EP 95942196 A EP95942196 A EP 95942196A EP 95942196 A EP95942196 A EP 95942196A EP 0800425 B1 EP0800425 B1 EP 0800425B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- mandrel
- pressing
- flow turning
- shaping tool
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
- B21H5/025—Internally geared wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
- B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
- B21H7/187—Rolling helical or rectilinear grooves
Definitions
- the invention relates to a method for producing internally toothed parts according to the preamble of claim 1.
- DE-A1 24 20 014 describes a generic cylindrical ironing process described in which a tubular workpiece is a rotating extrusion process is subjected. There occurs a plastic deformation or a punctiform one Dough of the material. This procedure differs Basically from rolling, hammering or deep drawing, as this involves strain hardening of the material occurs.
- the workpiece is on a rotatably driven mandrel, one or more spinning rollers from the outside lay against the workpiece during a longitudinal movement. Between the mandrel or a forming tool and the spinning roller or spinning rollers finds one Flow deformation of the metal takes place, reducing the wall thickness of the workpiece and its length is increased.
- the invention has for its object a method according to the preamble of To improve claim 1 overall so much that series production is guaranteed is.
- the forming tool according to the invention consists of chrome and molybdenum-containing materials (e.g. according to DIN 1.2343; 1.2344; 1.2606) and is tempered and surface hardened. It will then preferably still be polished. These measures make the forming tool extremely durable and for suitable for continuous use.
- the distance of the forming tool from the holder of the mandrel is advantageously greater than or equal to 200 mm, preferably 500 mm. That measure is of course depending on the stability and size of the machine. In any Case must be ensured that the forming tool has a certain deflection can perform.
- the pressure rollers are preferably made of HSS steel or hard metal.
- the entry angle of the spinning roller or spinning rollers is in preferred embodiment between 5-45 °, the outlet angle between 0-20 ° and the outer roller radius between 0.5-25 mm.
- Another feature of the invention provides that the workpiece as pre-turned or forged pot-shaped raw part on the Forming tool is pushed on. As a result, the workpiece is on the Forming tool firmly anchored.
- the pressure rollers can better grip the workpiece advantageously a constriction on the outer end face of the workpiece provided whose depth is 0.2-0.6 x S, where S is the thickness of the wall of the Workpiece.
- the constriction expediently extends over an angle ⁇ of a maximum of 45 ° into the outer peripheral surface of the workpiece.
- the ironing press can also be carried out in the Counter-rotation pressing processes are carried out.
- a tailstock guided in the machine and mandrel Forming tool and tailstock form one unit.
- the workpiece is here as Pot-shaped blank clamped between the forming tool and mandrel.
- the double-sided pot-shaped workpiece advantageously has a blank constriction on one side towards the middle, at an angle of a maximum of 20 ° into the outer peripheral surface of the workpiece and one Depth of 0.2-0.6 x S, where S is the thickness of the wall of the workpiece.
- FIG. 1 schematically shows a part of a pressing mandrel 10 which consists of a mandrel 1 with a forming tool 2 attached to the end side. Not Shown is the holding of the mandrel 10 in a machine.
- the Forming tool 2 is on an end extension 11 of the mandrel 1 non-rotatably attached.
- FIG. 5 shows an embodiment of such a forming tool 2 in section.
- the forming tool 2 On the surface of the forming tool 2 are longitudinal teeth, grooves or grooves arranged, the negative of a toothing to be produced represent.
- a cup-shaped workpiece 4 is pushed onto the forming tool 2 (see Fig. 1).
- Pressure rollers 3 engage the workpiece 4 from the outside by the force of the pressure rollers 3, a flow deformation of the metal Workpiece 4 takes place.
- the wall thickness is reduced and the length enlarged at the same time.
- the synchronous pressing method is shown here.
- the distance of the forming tool 2 is not shown holding the mandrel 10 selected in the machine so large that the forming tool 2 has a certain deflection ⁇ to the machine axis 5 can perform. This allows the forming tool 2 between the Center the pressure rollers 3 yourself.
- the distance of the forming tool 2 from the For this reason, the holder should be greater than or equal to 200 mm, preferably 500 mm be. So that the forming tool 2 is more durable, it is according to the invention Chromium and molybdenum-containing materials manufactured and tempered as well surface hardened.
- Fig. 2 shows an embodiment of a mandrel 10 with a helical forming tool 2 and a workpiece 4 placed thereon, which is just pressed onto the forming tool 2 by a pressure roller 3.
- this is particularly important Forming tool 2 due to the axially flowing material to break the teeth claimed.
- the forming parameters such as feed the pressure rollers, degree of reduction, roller geometry and speed of the machine the tendency of the material to twist during forming can be used. As a result, the forming tool 2 is relieved and thus a longer one Service life reached.
- the forming of the material in the ironing process creates one strong solidification of the material. This solidification can be caused by corresponding choice of the degree of deformation and the tool geometry is influenced become. This is a subsequent remuneration and hardening of internally toothed parts unnecessary.
- the work hardening as well as a possible Surface hardening by known nitriding processes ensure that desired hardness and wear resistance of the parts.
- Fig. 3 shows the ironing press in the counter-current process.
- a tailstock 9 guided in the machine is arranged on the forming tool 2, whereby mandrel 1, forming tool 2 and tailstock 9 form a unit.
- the Workpiece 4 is a pot-shaped blank between the forming tool 2 and mandrel 1 or a holding element 12 clamped.
- the spinning roller or spinning rollers 3 grip the end of the workpiece 4 facing the tailstock 9 on the latter and move from there towards mandrel 1.
- Fig. 4 shows the production of an internally toothed part with a double-sided Gearing, being a combination of the synchronous pressing method and the counter-rotation pressing method is used.
- a tailstock 9 and a mandrel 1 two forming tools 2a, 2b are arranged here, wherein there is a double-sided pot-shaped between the forming tools 2a, 2b Workpiece 4 'is located.
- the ironing press in the synchronous pressing process is done by a pressure roller 3b, which runs from the center of the workpiece 4 'in the direction of the mandrel 1 is moved.
- the counter-rotating pressing process is done by a tailstock 9 adjacent spinning roller 3a, the end of the workpiece 4 'towards the center is moved.
- Fig. 6 shows in section a pressure roller 3.
- the pressure rollers 3 advantageously made of HSS steel or a hard metal.
- the Inlet angle ⁇ of the pressure roller 3 is advantageously between 5-45 ° Exit angle ⁇ between 0-20 ° and the outer roller radius r between 0.5-25 mm.
- the roll thickness B is advantageously between 60 and 260 mm the roll width D between 20 to 90 mm.
- the workpiece 4, 4 ' is advantageously turned as a pre-turned one or forged raw part pushed onto the forming tool 2.
- Fig. 7 is a workpiece 4 for use advantageously for the Synchronous pressing method shown.
- Fig. 1 shows a corresponding arrangement.
- the constriction 7 goes over one Angle ⁇ of a maximum of 45 ° in the outer peripheral surface of the workpiece 4. This constriction 7 enables the pressure rollers 3 to be better gripped.
- FIG. 8 shows a section of a double-pot-shaped workpiece 4 'as a blank.
- This workpiece 4 ' is used in the device described in FIG. 4.
- the workpiece 4 ' has a constriction directed towards the center on one side 7 ', which is at an angle ⁇ of maximum 20 ° in the outer peripheral surface 8 of the Workpiece 4 'merges and has a depth a of 0.2-0.6 x S, where S is the Thickness of the wall of the workpiece 4 'is as a blank.
- This constriction 7 'is for the better engagement of the pressure roller 3b is provided in FIG. 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
- Organic Insulating Materials (AREA)
Description
- Fig. 1
- ein Drückdorn mit aufgelegtem Werkstück und angelegten Drückrollen im Gleichlaufdrückverfahren,
- Fig. 2
- ein Drückdorn mit einem schrägverzahnten Umformwerkzeug,
- Fig. 3
- eine Anordnung zum Abstreckdrücken im Gegenlaufdrückverfahren,
- Fig. 4
- eine Anordnung zum Abstreckdrücken eines Werkstücks mit doppelseitiger Verzahnung,
- Fig. 5
- im Schnitt ein Umformwerkzeug,
- Fig. 6
- im Schnitt eine Drückrolle,
- Fig. 7
- im Schnitt ein topfförmiges Werkstück als Rohteil und
- Fig. 8
- im Schnitt ein doppeltopfförmiges Werkstück als Rohteil.
Claims (10)
- Abstreckdrückverfahren zur Herstellung von innenverzahnten Teilen mit einem Drückdorn (10), bestehend aus einem Dorn (1) mit einem aufgesetzten Umformwerkzeug (2) und einer oder mehreren Drückrollen (3), wobei zwischen Umformwerkzeug (2) bzw. Drückdorn (10) und Drückrollen (3) ein Werkstück (4) angeordnet ist, welches durch die Kraftbeaufschlagung der Drückrollen (3) plastisch verformt wird, dadurch gekennzeichnet, daß der Abstand des Umformwerkzeugs (2) von der Halterung des Drückdorns (10) in der Maschine so groß ist, daß das Umformwerkzeug (2) sich unter dem Druck der gleichmäßig auf dem Umfang angreifenden Drückrollen (3) durch Auslenkung des Drückdorns (10) selbsttätig zentriert, und daß das Umformwerkzeug (2) aus chrom- und molybdänhaltigen Werkstoffen besteht und vergütet sowie oberflächengehärtet ist.
- Abstreckdrückverfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Abstand des Umformwerkzeuges (2) von der Halterung des Drückdorns (10) größer gleich 200 mm, bevorzugt 500 mm ist.
- Abstreckdrückverfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Drückrollen (3) aus HSS-Stahl bzw. Hartmetall hergestellt sind.
- Abstreckdrückverfahren nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß der Einlaufwinkel (β) der Drückrolle bzw. der Drückrollen (3) zwischen 5-45°, der Auslaufwinkel (Θ) zwischen 0-20° und der äußere Rollenradius (r) zwischen 0,5-25 mm liegt.
- Abstreckdrückverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Werkstück (4) als vorgedrehtes oder vorgeschmiedetes topfförmiges Rohteil auf das Umformwerkzeug (2) aufgeschoben ist.
- Abstreckdrückvertahren nach Anspruch 5, dadurch gekennzeichnet, daß an der äußeren Stirnseite (6) des Werkstücks (4) eine Einschnürung (7) vorgesehen ist, deren Tiefe (a) 0,2-0,6 x S beträgt, wobei S die Dicke der Wand des Werkstücks (4) ist.
- Abstreckdrückverfahren nach Anspruch 6, dadurch gekennzeichnet, daß die Einschnürung (7) über einen Winkel (δ) von maximal 45° in die äußere Umfangsfläche (8) des Werkstücks (4) übergeht.
- Abstreckdrückverfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Abstreckdrücken im Gegenlaufdrückverfahren durchgeführt wird, wobeiangrenzend an das Umformwerkzeug (2) ein in der Maschine geführter Reitstock (9) angeordnet ist und Dorn (1), Umformwerkzeug (2) und Reitstock (9) eine Einheit bilden unddas Werkstück (4) als topfförmiges Rohteil zwischen Umformwerkzeug (2) und Dorn (1) eingespannt ist.
- Abstreckdrückverfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zur Herstellung von innenverzahnten Teilen mit einer doppelseitigen Verzahnung eine Kombination aus dem Gleichlaufdrückverfahren und dem Gegenlaufdrückverfahren angewendet wird, derart,daß zwischen einem Reitstock (9) und einem Dorn (1) zwei Umformwerkzeuge (2a,2b) angeordnet sind,daß zwischen den Umformwerkzeugen (2a,2b) ein doppelseitiges topfförmiges Werkstück (4') angeordnet ist,daß eine dem Reitstock (9) benachbarte Drückrolle (3a) im Gegenlaufdrückverfahren vom Ende des Werkstücks (4') zur Mitte hin fortbewegt wird, unddaß eine dem Dorn (1) benachbarte Drückrolle (3b) im Gleichlaufdrückverfahren von der Mitte des Werkstücks (4') aus in Richtung Dorn (1) fortbewegt wird.
- Abstreckdrückverfahren nach Anspruch 9, dadurch gekennzeichnet, daß das doppelseitige topfförmige Werkstück (4') als Rohteil eine auf einer Seite zur Mitte hin gerichtete Einschnürung (7') aufweist, die in einem Winkel (σ) von maximal 20° in die äußere Umfangsfläche (8) des Werkstücks (4') übergeht und eine Tiefe (a) von 0,2-0,6 x S aufweist, wobei S die Dicke der Wand des Werkstücks (4') ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4446919A DE4446919A1 (de) | 1994-12-28 | 1994-12-28 | Verfahren zur Herstellung von innenverzahnten Teilen |
DE4446919 | 1994-12-28 | ||
PCT/EP1995/005105 WO1996020050A1 (de) | 1994-12-28 | 1995-12-22 | Verfahren zur herstellung von innenverzahnten teilen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0800425A1 EP0800425A1 (de) | 1997-10-15 |
EP0800425B1 true EP0800425B1 (de) | 1999-02-17 |
Family
ID=6537330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95942196A Expired - Lifetime EP0800425B1 (de) | 1994-12-28 | 1995-12-22 | Verfahren zur herstellung von innenverzahnten teilen |
Country Status (9)
Country | Link |
---|---|
US (1) | US6026666A (de) |
EP (1) | EP0800425B1 (de) |
JP (1) | JPH10511312A (de) |
AT (1) | ATE176766T1 (de) |
CA (1) | CA2209121A1 (de) |
CZ (1) | CZ205597A3 (de) |
DE (2) | DE4446919A1 (de) |
ES (1) | ES2127578T3 (de) |
WO (1) | WO1996020050A1 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19722359A1 (de) * | 1997-05-28 | 1998-12-03 | Dynamit Nobel Ag | Drückwalzvorrichtung und Verfahren zur Herstellung von Hohlrädern mit zwei Innenverzahnungen |
DE19723198A1 (de) * | 1997-06-03 | 1998-12-10 | Dynamit Nobel Ag | Drückwalzvorrichtung und Verfahren zur Herstellung eines stirnverzahnten Werkstückes |
DE19731056A1 (de) * | 1997-07-19 | 1999-01-21 | Dynamit Nobel Ag | Verfahren zur Herstellung eines stirnverzahnten Werkstückes |
DE19731055A1 (de) * | 1997-07-19 | 1999-01-21 | Dynamit Nobel Ag | Vorrichtung und Verfahren zum Einformen einer Rillenstruktur in ein rohrförmiges Werkstück |
DE19810265A1 (de) | 1998-03-10 | 1999-09-16 | Dynamit Nobel Ag | Verfahren zur Herstellung einer metallischen Zylinderlaufbuchse |
DE19830817B4 (de) * | 1998-07-09 | 2011-06-09 | Leifeld Metal Spinning Gmbh | Verfahren zum Umformen eines Werkstücks durch Drückwalzen |
DE69931800T2 (de) | 1998-10-28 | 2007-07-12 | Cellon S.A. | Strukturierter und poröser silikonkautschuk |
JP4568962B2 (ja) * | 1999-06-30 | 2010-10-27 | アイシン・エィ・ダブリュ株式会社 | クラッチのドラム及び内歯部材の成形装置 |
JP4491958B2 (ja) * | 2000-11-20 | 2010-06-30 | アイシン・エィ・ダブリュ株式会社 | 円筒部材の製造方法、及び円筒部材の製造装置 |
DE10217848A1 (de) * | 2002-04-22 | 2003-11-06 | Hay Tec Automotive Gmbh & Co K | Verfahren zur Herstellung von Schiebemuffen für Schaltgetriebe |
US7910218B2 (en) | 2003-10-22 | 2011-03-22 | Applied Materials, Inc. | Cleaning and refurbishing chamber components having metal coatings |
US7316142B2 (en) * | 2004-05-21 | 2008-01-08 | Lancaster Paul B | Metal spin forming head |
US20050279630A1 (en) * | 2004-06-16 | 2005-12-22 | Dynamic Machine Works, Inc. | Tubular sputtering targets and methods of flowforming the same |
US7670436B2 (en) | 2004-11-03 | 2010-03-02 | Applied Materials, Inc. | Support ring assembly |
US8617672B2 (en) | 2005-07-13 | 2013-12-31 | Applied Materials, Inc. | Localized surface annealing of components for substrate processing chambers |
US7762114B2 (en) * | 2005-09-09 | 2010-07-27 | Applied Materials, Inc. | Flow-formed chamber component having a textured surface |
US9127362B2 (en) | 2005-10-31 | 2015-09-08 | Applied Materials, Inc. | Process kit and target for substrate processing chamber |
US8647484B2 (en) * | 2005-11-25 | 2014-02-11 | Applied Materials, Inc. | Target for sputtering chamber |
US8042370B2 (en) * | 2006-02-07 | 2011-10-25 | Ronjo, Llc | Flow formed gear |
US20070283884A1 (en) * | 2006-05-30 | 2007-12-13 | Applied Materials, Inc. | Ring assembly for substrate processing chamber |
US7981262B2 (en) | 2007-01-29 | 2011-07-19 | Applied Materials, Inc. | Process kit for substrate processing chamber |
US7942969B2 (en) | 2007-05-30 | 2011-05-17 | Applied Materials, Inc. | Substrate cleaning chamber and components |
US20090084317A1 (en) * | 2007-09-28 | 2009-04-02 | Applied Materials, Inc. | Atomic layer deposition chamber and components |
EP2241386A1 (de) * | 2009-04-16 | 2010-10-20 | Felss GmbH | Umformwerkzeug zur Herstellung eines Innenprofils, insbesondere einer Innenverzahnung, eines Werkstücks |
DE102012105958A1 (de) | 2012-07-04 | 2014-01-23 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung eines Verbindungselements zur Übertragung von Drehbewegungen |
CN104624898B (zh) * | 2014-12-15 | 2016-06-22 | 西安理工大学 | 一种通用单主轴立式高速冷滚打机床 |
CN105414296B (zh) * | 2015-12-10 | 2017-07-11 | 中国航天科技集团公司长征机械厂 | 带内纵齿离合器壳体复合旋压成形设备及工艺 |
EP3670019A1 (de) * | 2018-12-21 | 2020-06-24 | Tubacex Innovación A.I.E. | Verfahren und maschinen zur herstellung von rohren mittels strömungsformung |
CN113399935B (zh) * | 2020-03-16 | 2022-05-20 | 无锡巨蟹智能驱动科技有限公司 | 一种谐波减速机柔轮的制造工艺 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1665286A (en) * | 1921-08-30 | 1928-04-10 | Catherine Strayer | Method and machine for finishing circular castings |
DE460626C (de) * | 1926-02-27 | 1928-06-01 | M F C Gronning | Verfahren zur Herstellung von Innengewinde in Hohlkoerpern |
US2220757A (en) * | 1937-12-16 | 1940-11-05 | Carboloy Company Inc | Tube drawing nib mount |
DD35074A (de) * | 1963-05-14 | |||
US3396563A (en) * | 1965-10-21 | 1968-08-13 | Fellows Gear Shaper Co | Method of forming profiled objects |
US3535910A (en) * | 1966-03-11 | 1970-10-27 | John E Connolly | Impact tool |
US3768291A (en) * | 1972-02-07 | 1973-10-30 | Uop Inc | Method of forming spiral ridges on the inside diameter of externally finned tube |
DE2420014A1 (de) * | 1973-06-07 | 1975-01-02 | France Etat | Verfahren zur herstellung von zuegen oder riefen in der innenflaeche von koerpern mit gerader oder gebogener mantellinie waehrend einer verformung durch abstreckdruekken, sowie vorrichtung zur durchfuehrung dieses verfahrens |
JPS5851038A (ja) * | 1981-09-17 | 1983-03-25 | Mitsubishi Heavy Ind Ltd | 加工機械主軸の支持方法 |
FR2559078B1 (fr) * | 1984-02-02 | 1988-03-25 | Vallourec | Procede de realisation d'une collerette annulaire sur le fond d'un recipient de revolution |
US4854148A (en) * | 1987-06-19 | 1989-08-08 | The Babcock & Wilcox Company | Cold drawing technique and apparatus for forming internally grooved tubes |
-
1994
- 1994-12-28 DE DE4446919A patent/DE4446919A1/de not_active Withdrawn
-
1995
- 1995-12-22 AT AT95942196T patent/ATE176766T1/de not_active IP Right Cessation
- 1995-12-22 ES ES95942196T patent/ES2127578T3/es not_active Expired - Lifetime
- 1995-12-22 WO PCT/EP1995/005105 patent/WO1996020050A1/de not_active Application Discontinuation
- 1995-12-22 CA CA002209121A patent/CA2209121A1/en not_active Abandoned
- 1995-12-22 EP EP95942196A patent/EP0800425B1/de not_active Expired - Lifetime
- 1995-12-22 US US08/875,215 patent/US6026666A/en not_active Expired - Fee Related
- 1995-12-22 JP JP8520203A patent/JPH10511312A/ja active Pending
- 1995-12-22 CZ CZ972055A patent/CZ205597A3/cs unknown
- 1995-12-22 DE DE59505133T patent/DE59505133D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE4446919A1 (de) | 1996-07-04 |
EP0800425A1 (de) | 1997-10-15 |
US6026666A (en) | 2000-02-22 |
DE59505133D1 (de) | 1999-03-25 |
WO1996020050A1 (de) | 1996-07-04 |
JPH10511312A (ja) | 1998-11-04 |
CA2209121A1 (en) | 1996-07-04 |
ATE176766T1 (de) | 1999-03-15 |
MX9704834A (es) | 1998-07-31 |
ES2127578T3 (es) | 1999-04-16 |
CZ205597A3 (cs) | 1998-10-14 |
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