OXFORD, Mass.--(BUSINESS WIRE)--IPG Photonics Corporation (NASDAQ: IPGP) announced today that in conjunction with its scheduled quarterly financial results news release, Chairman and Chief Executive Officer Dr. Valentin P. Gapontsev and Senior Vice President and Chief Financial Officer Timothy P.V. Mammen will host the Company’s second-quarter 2015 financial results conference call on Tuesday, July 28, 2015 at 10:00 a.m. ET. To listen to the live call, please visit the “Investors” section of IP