OXFORD, Mass.--(BUSINESS WIRE)--IPG Photonics Corporation (NASDAQ: IPGP) today announced that its Chief Financial Officer, Tim Mammen, will be presenting at Needham’s 4th Annual Advanced Industrial Technologies Conference on Thursday, August 6, 2015 at 12:45 p.m. ET. A live audio webcast of the presentation will be available through the “Investors” section of IPG’s website at www.ipgphotonics.com. An archive will be available on the Company’s website for approximately 90 days. About IPG Photoni