Waltham - Mr. Toi J. Vongnaphet, of Waltham, died Thursday, June 22, 2006 in Newton-Wellesley Hospital. He was 46. Born in Laos, Mr. Vongnaphet had lived in the United States since 1982. He was a quality control inspector for Boston Centerless in Woburn and had previously worked for the Van Keuren company in Waltham and Framingham for fifteen years. Mr. Vongnaphet was a member of Saint Mary of the Angels Church in Roxbury and he was also a member of the Kmhmu Community. Mr. Vongnaphet is survived by his wife of nineteen years, Chansook M. (Sythandone) Vongnaphet; his children, Anthony T.J. Vongnaphet and Emily M.J. Vongnaphet both of Waltham; his brothers, Sy Vongnaphet of Laos and San Vongnaphet of Thailand; his sisters, Geung Syuilai of Laos and Jur Saenpraseuth of Thailand; and many nieces and nephews. He was the son of the late Kam and Plao Vongnaphet. The Funeral will be held at 8:45 a.m. Wednesday from The Joyce Funeral Home, 245 Main Street (Rte. 20), Waltham followed by a Funeral Mass in Saint Mary of the Angels Church, 2056 Columbus Avenue, Roxbury, at 10 a.m. Burial will be in Mount Feake Cemetery, Waltham. Visiting hours will be held Monday from 7 to 9 p.m. and Tuesday 2 to 4 and 7 to 9 p.m.