Patent ID: 8680757

Claim:
A method for producing a spark plug comprising an inner conductor, an insulator surrounding the inner conductor, a spark plug body surrounding the insulator, and two electrodes forming an ignition gap, wherein the first electrode is a center electrode connected to the inner conductor in an electrically conducting manner and the second electrode is a ground electrode connected to the spark plug body in an electrically conducting manner, wherein, said method comprises the steps of welding an iridium component comprising more than 95 percent by weight of iridium onto one of the electrodes, and punching said iridium component out of an iridium sheet, wherein said iridium component is punched out of said iridium sheet with a ratio of diameter to thickness in a range from 4 to 7 that facilitates easy handling of said iridium component during production and reduces wear and tear of said one of the electrodes during operation.