# US 8,770,606 B2 · Control arm for a vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,606 B2 - Document ID: US8770606B2 - Status: Granted - Kind: B2 - Application number: 13/496,011 - Filed: 2010-09-14 - Published: 2012-08-30 - Granted: 2014-07-08 - Earliest claimed: 2009-09-14 - Assignees: Magna International Inc. - Applicants: Ernst Lindtner; Josef Schellnegger - Inventors: Ernst Lindtner; Josef Schellnegger - Web page: https://patentgrep.com/patent/US8770606B2 ## CPC - B21D 19/08: by single or successive action of pressing tools, e.g. vice jaws - B21D 53/88: other parts for vehicles, e.g. cowlings, mudguards - B21J 5/08: Upsetting - B21K 3/00: Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like - B21K 23/00: Making other articles - B60G 7/001: {Suspension arms, e.g. constructional features (B60G7/006 takes precedence)} - F16C 7/08: made from sheet metal - B60G 2206/017: forming an eye for the bushing - B60G 2206/11: the arm being a radius or track or torque or steering rod or stabiliser end link - B60G 2206/16: the arm having a U profile and/or made of a plate - B60G 2206/72: Steel - B60G 2206/8103: by folding or bending - B60G 2206/83: Punching - F16C 2326/05: Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) - B21J: FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES (rolling of metal B21B; making particular products by forging or pressing B21K; cladding or plating B23K; finishing surfaces by hammering B23P9/04; compacting surfaces by blasting with particulate material B24C1/10; general features of presses, presses for consolidating scrap B30B; furnaces in general F27) - B21K: MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS (making particular articles by working sheet metal without essentially removing material B21D; processing wire B21F; making pins, needles or nails B21G; making particular articles by rolling B21H; forging machines, pressing machines, hammering machines, in general B21J; making chains B21L; plating B23K) - B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00}) - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS ## Abstract A component, especially a control arm for a vehicle, includes a base wall and a passage extending away from said base wall, and in particular, a control arm lug. A method for producing such a component includes shortening a deep-drawn contour which connects one side of the base wall to an inner contour of a passage in the longitudinal direction of the passage by means of upsetting. ## Claims ### Claim 1 A method for producing a component having a base wall and a passage extending from the base wall and formed from the base wall, the forming of the passage comprising the following steps: forming an initial passage having a wall thickness and a deep-drawn contour which connects one side of the base wall to an inner contour of the passage, and upsetting the passage, wherein during the upsetting of the passage, the deep-drawn contour is shortened in the longitudinal direction of the passage and the inner contour is displaced towards the side of the base wall to increase in a radial direction the entire length of the wall thickness of the passage. ### Claim 2 (depends on 1) The method according to claim 1, wherein the deep-drawn contour is rounded in the longitudinal direction of the passage and its rounding radius is reduced by said upsetting to a value of about 2 mm or smaller. ### Claim 3 (depends on 1) The method according to claim 1, wherein an inner span of the passage is reduced simultaneously to the shortening of the deep-drawn contour in the longitudinal direction. ### Claim 4 (depends on 1) The method according to claim 1, wherein the wall thickness of the passage is increased simultaneously to the shortening of the deep-drawn contour. ### Claim 5 (depends on 1) The method according to claim 1, wherein the passage is calibrated to its intended final dimensions simultaneously to the shortening of the deep-drawn contour in the longitudinal direction. ### Claim 6 (depends on 1) The method according to claim 1, wherein the initial passage obtains a rough cylindrical shape having a flat bottom by means of deep-drawing. ### Claim 7 (depends on 6) The method according to claim 6, wherein the entire flat bottom is punched out. ### Claim 8 (depends on 6) The method according to claim 6, wherein the passage is penetrated cylindrically as next step after punching out the bottom. ### Claim 9 (depends on 1) The method according to claim 1, wherein, starting from the wall thickness of the initial passage, the wall thickness of the passage as a whole is increased by at least 0.3 mm. ### Claim 10 (depends on 1) The method according to claim 1, wherein the wall thickness of the passage is increased to a value which is larger than the wall thickness of the base wall. ### Claim 11 (depends on 1) The method according to claim 1, wherein the wall thickness of the passage is increased to a value which is larger than the wall thickness of the base wall by at least 0.2 mm. ### Claim 12 (depends on 1) The method according to claim 1, wherein prior to shortening the deep-drawn contour the wall thickness of the passage is enhanced while reducing an inner span of the passage. ### Claim 13 (depends on 1) The method according to claim 1, wherein a steel having a tensile strength of 500 N/mm2 or more is used to produce the component.