圧あっ接せつあっせつMeanings1nounpressure weldingTechnical term in engineering for joining materials by applying pressure, often with heat.圧あっ接せつは金きん属ぞく同どう士しを接せつ合ごうする方ほう法ほうの一ひとつです。Pressure welding is one method of joining metals together.