Welding Technology WELD

Fall 2026 · 48 sections · seat counts as of Oct 25, 2026

Catalog: Welding Technology courses in the 2026-2027 Catalog

WELD-01 Fundamentals of Shielded Metal Arc Welding · 3 units

Course description

CRN	Meets	Dates	Instructor	Seats
36201	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Tue/Thu 5:10–9:40pm, 2 rooms + online work All meeting times In-Person Lecture Tue/Thu 5:10–6:10pm Agriculture Building 10 In-Person Laboratory Tue/Thu 6:20–9:40pm Industrial Technology Build. 6B Plus online work	Oct 19–Dec 11	Daniel P. Col, Christopher E. Opinski	Full (26/24), 2 waitlisted
39409	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–3:40pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–8:15am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:25am–3:40pm Industrial Technology Build. 6B Plus online work	Sep 7–Sep 18	Daniel P. Col	Full (22/24), 3 waitlisted
39499	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–3:40pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–8:15am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:25am–3:40pm Industrial Technology Build. 6B Plus online work	Sep 7–Sep 18	Daniel P. Col	2 of 24 open
79804	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–12:30pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 8:00–9:40am Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 9:50am–12:30pm Off-Campus Los Banos HBPG	Sep 2–Oct 1	Fong Xiong	3 of 21 open, 3 waitlisted
79806	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–12:30pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 8:00–9:40am Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 9:50am–12:30pm Off-Campus Los Banos HBPG	Sep 2–Oct 1	Fong Xiong	Full (4/3)
79844	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Fri/Sat 8:00am–12:55pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Fri/Sat 8:00–9:40am Off-Campus Los Banos HBPG In-Person Laboratory Fri/Sat 9:50am–12:55pm Off-Campus Los Banos HBPG	Sep 18–Nov 7	Christopher E. Opinski	4 of 21 open, 1 waitlisted
79846	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Fri/Sat 8:00am–12:55pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Fri/Sat 8:00–9:40am Off-Campus Los Banos HBPG In-Person Laboratory Fri/Sat 9:50am–12:55pm Off-Campus Los Banos HBPG	Sep 18–Nov 7	Christopher E. Opinski	Full (3/3)

WELD-02 Fundamentals of Gas Metal and Flux Cored Arc Welding · 3 units

Course description

CRN	Meets	Dates	Instructor	Seats
36202	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Wed 5:00–9:30pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Wed 5:00–6:00pm Agriculture Building 10 In-Person Laboratory Mon/Wed 6:10–9:30pm Industrial Technology Build. 6B Plus online work	Aug 24–Oct 16	Benjamin M. Scroggins	Full (26/24), 4 waitlisted
39124	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–2:35pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–8:10am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:20am–2:35pm Industrial Technology Build. 6B Plus online work	Sep 21–Oct 2	Benjamin M. Scroggins	Full (26/24), 2 waitlisted
39125	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–2:35pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–8:10am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:20am–2:35pm Industrial Technology Build. 6B Plus online work	Sep 21–Oct 2	Benjamin M. Scroggins	Full (26/24), 1 waitlisted
79812	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–12:55pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 8:00–9:40am Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 9:50am–12:55pm Off-Campus Los Banos HBPG	Oct 5–Oct 29	Fong Xiong	6 of 21 open, 2 waitlisted
79814	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–12:55pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 8:00–9:40am Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 9:50am–12:55pm Off-Campus Los Banos HBPG	Oct 5–Oct 29	Fong Xiong	Full (4/3)
79852	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Fri/Sat 8:00am–8:35pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Fri/Sat 8:00am–12:40pm Off-Campus Los Banos HBPG In-Person Laboratory Fri/Sat 1:10–8:35pm Off-Campus Los Banos HBPG	Nov 13–Dec 11	Christopher E. Opinski	1 of 21 open, 1 waitlisted
79854	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Fri/Sat 8:00am–8:35pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Fri/Sat 8:00am–12:40pm Off-Campus Los Banos HBPG In-Person Laboratory Fri/Sat 1:10–8:35pm Off-Campus Los Banos HBPG	Nov 13–Dec 11	Christopher E. Opinski	1 of 3 open

WELD-46 Advanced Arc Welding Procedures · 1 units

Course description

CRN	Meets	Dates	Instructor	Seats
39122	In person In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–1:15pm, Industrial Technology Build. 6	Nov 30–Dec 11	Benjamin M. Scroggins	Full (24/24), 1 waitlisted
39123	In person In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–1:15pm, Industrial Technology Build. 6	Nov 30–Dec 11	Benjamin M. Scroggins	Full (24/24), 3 waitlisted
79824	In person In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–5:00pm, Off-Campus Los Banos HBPG All meeting times Mon/Tue/Wed/Thu 8:00am–12:00pm Off-Campus Los Banos HBPG Mon/Tue/Wed/Thu 12:30–5:00pm Off-Campus Los Banos HBPG	Dec 2–Dec 10	Fong Xiong	Full (23/21)
79826	In person In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–5:00pm, Off-Campus Los Banos HBPG All meeting times Mon/Tue/Wed/Thu 8:00am–12:00pm Off-Campus Los Banos HBPG Mon/Tue/Wed/Thu 12:30–5:00pm Off-Campus Los Banos HBPG	Dec 2–Dec 10	Fong Xiong	Full (5/3)

WELD-54 Print Reading and Sketching for Welders · 2 units

Course description

CRN	Meets	Dates	Instructor	Seats
36254	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Wed 5:00–9:30pm, 2 rooms All meeting times In-Person Lecture Mon/Wed 5:00–6:00pm Agriculture Building 10 In-Person Laboratory Mon/Wed 6:10–9:30pm Industrial Technology Build. 6B	Oct 19–Dec 11	Benjamin M. Scroggins	Full (26/24), 5 waitlisted
39126	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–12:30pm, 2 rooms All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–8:15am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:25am–12:30pm Industrial Technology Build. 6B	Oct 19–Nov 6	Benjamin M. Scroggins	Full (22/24), 1 waitlisted
39127	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–12:30pm, 2 rooms All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–8:15am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:25am–12:30pm Industrial Technology Build. 6B	Oct 19–Nov 6	Benjamin M. Scroggins	2 of 24 open, 2 waitlisted
79808	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 1:00–4:40pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 1:00–1:50pm Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 2:00–4:40pm Off-Campus Los Banos HBPG	Sep 2–Oct 1	Fong Xiong	2 of 21 open, 1 waitlisted
79810	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 1:00–4:40pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 1:00–1:50pm Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 2:00–4:40pm Off-Campus Los Banos HBPG	Sep 2–Oct 1	Fong Xiong	Full (3/3)
79848	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Fri/Sat 1:25–5:30pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Fri/Sat 1:25–2:15pm Off-Campus Los Banos HBPG In-Person Laboratory Fri/Sat 2:25–5:30pm Off-Campus Los Banos HBPG	Sep 18–Nov 7	Christopher E. Opinski	4 of 21 open, 2 waitlisted
79850	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Fri/Sat 1:25–5:30pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Fri/Sat 1:25–2:15pm Off-Campus Los Banos HBPG In-Person Laboratory Fri/Sat 2:25–5:30pm Off-Campus Los Banos HBPG	Sep 18–Nov 7	Christopher E. Opinski	Full (4/3)

WELD-55 Equipment Operation and Saftey · 3 units

Course description

CRN	Meets	Dates	Instructor	Seats
36255	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Tue/Thu 5:00–9:00pm, 2 rooms + online work All meeting times In-Person Lecture Tue/Thu 5:00–5:55pm Agriculture Building 10 In-Person Laboratory Tue/Thu 6:05–9:00pm Industrial Technology Build. 6B Plus online work	Aug 24–Oct 16	Daniel P. Col	Full (26/24), 4 waitlisted
39128	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–2:15pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–7:50am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:00am–2:15pm Industrial Technology Build. 6B Plus online work	Aug 24–Sep 4	Benjamin M. Scroggins	Full (25/24), 3 waitlisted
39129	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–2:15pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–7:50am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:00am–2:15pm Industrial Technology Build. 6B Plus online work	Aug 24–Sep 4	Benjamin M. Scroggins	Full (25/24), 3 waitlisted
79800	Hybrid Online Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–5:00pm, Off-Campus Los Banos HBPG + online work All meeting times Mon/Tue/Wed/Thu 8:00am–12:00pm Off-Campus Los Banos HBPG Mon/Tue/Wed/Thu 12:30–5:00pm Off-Campus Los Banos HBPG Plus online work	Aug 24–Sep 1	Christopher E. Opinski	1 of 21 open, 2 waitlisted
79802	Hybrid Online Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–5:00pm, Off-Campus Los Banos HBPG + online work All meeting times Mon/Tue/Wed/Thu 8:00am–12:00pm Off-Campus Los Banos HBPG Mon/Tue/Wed/Thu 12:30–5:00pm Off-Campus Los Banos HBPG Plus online work	Aug 24–Sep 1	Christopher E. Opinski	1 of 3 open
79840	Hybrid Online Lecture, In-Person Laboratory · Los Banos Off-Campus Fri/Sat 8:00am–5:00pm, Off-Campus Los Banos HBPG + online work All meeting times Fri/Sat 8:00am–12:00pm Off-Campus Los Banos HBPG Fri/Sat 12:30–5:00pm Off-Campus Los Banos HBPG Plus online work	Aug 28–Sep 12	Christopher E. Opinski	Full (21/21), 1 waitlisted
79842	Hybrid Online Lecture, In-Person Laboratory · Los Banos Off-Campus Fri/Sat 8:00am–5:00pm, Off-Campus Los Banos HBPG + online work All meeting times Fri/Sat 8:00am–12:00pm Off-Campus Los Banos HBPG Fri/Sat 12:30–5:00pm Off-Campus Los Banos HBPG Plus online work	Aug 28–Sep 12	Christopher E. Opinski	Full (3/3)

WELD-56 Welding Design and Fabrication · 5 units

Course description

CRN	Meets	Dates	Instructor	Seats
39131	Hybrid Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–4:50pm, Industrial Technology Build. 6 + online work All meeting times Mon/Tue/Wed/Thu 7:00am–4:50pm Industrial Technology Build. 6 Plus online work	Nov 9–Nov 27	Daniel P. Col, Christopher E. Opinski	Full (24/24), 1 waitlisted
39133	Hybrid Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–4:50pm, Industrial Technology Build. 6 + online work All meeting times Mon/Tue/Wed/Thu 7:00am–4:50pm Industrial Technology Build. 6 Plus online work	Nov 9–Nov 27	Daniel P. Col, Christopher E. Opinski	Full (24/24), 2 waitlisted
79820	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–6:00pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 8:00–11:05am Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 11:35am–6:00pm Off-Campus Los Banos HBPG	Nov 2–Dec 1	Fong Xiong	Full (23/21), 2 waitlisted
79822	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 8:00am–6:00pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 8:00–11:05am Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 11:35am–6:00pm Off-Campus Los Banos HBPG	Nov 2–Dec 1	Fong Xiong	Full (5/3)

WELD-58 Fundamentals of Gas Tungsten Arc Welding · 2 units

Course description

CRN	Meets	Dates	Instructor	Seats
39132	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–2:25pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–8:00am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:10am–2:25pm Industrial Technology Build. 6B Plus online work	Oct 5–Oct 16	Daniel P. Col	Full (24/24), 1 waitlisted
39162	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:00am–2:25pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:00–8:00am Agriculture Building 10 In-Person Laboratory Mon/Tue/Wed/Thu 8:10am–2:25pm Industrial Technology Build. 6B Plus online work	Oct 5–Oct 16	Daniel P. Col	Full (24/24), 2 waitlisted
79816	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 1:25–5:30pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 1:25–2:15pm Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 2:25–5:30pm Off-Campus Los Banos HBPG	Oct 5–Oct 29	Fong Xiong	6 of 21 open, 2 waitlisted
79818	In person In-Person Lecture, In-Person Laboratory · Los Banos Off-Campus Mon/Tue/Wed/Thu 1:25–5:30pm, Off-Campus Los Banos HBPG All meeting times In-Person Lecture Mon/Tue/Wed/Thu 1:25–2:15pm Off-Campus Los Banos HBPG In-Person Laboratory Mon/Tue/Wed/Thu 2:25–5:30pm Off-Campus Los Banos HBPG	Oct 5–Oct 29	Fong Xiong	Full (4/3)

WELD-60 Fundamentals of Smaw and Gtaw in Pipe Welding and Tube Welding · 3 units

Course description

CRN	Meets	Dates	Instructor	Seats
39220	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:45am–1:25pm, 2 rooms All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:45–9:55am Agriculture Building 11 In-Person Laboratory Mon/Tue/Wed/Thu 10:05am–1:25pm Industrial Technology Build. 6A	Aug 24–Sep 18	Chad A. Russell	Full (33/24), 5 waitlisted
39221	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:45am–1:25pm, 2 rooms All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:45–9:55am Agriculture Building 11 In-Person Laboratory Mon/Tue/Wed/Thu 10:05am–1:25pm Industrial Technology Build. 6A	Aug 24–Sep 18	Chad A. Russell	Full (33/24), 1 waitlisted

WELD-61 Gas Tungsten Arc Welding of Pipe Stainless Steel and Carbon Pipe and Tube Welding · 4 units

Course description

CRN	Meets	Dates	Instructor	Seats
39222	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:45am–4:10pm, 2 rooms All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:45–9:45am Agriculture Building 11 In-Person Laboratory Mon/Tue/Wed/Thu 9:55am–4:10pm Industrial Technology Build. 6A	Sep 21–Oct 16	Chad A. Russell	Full (33/24), 5 waitlisted
39223	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:45am–4:10pm, 2 rooms All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:45–9:45am Agriculture Building 11 In-Person Laboratory Mon/Tue/Wed/Thu 9:55am–4:10pm Industrial Technology Build. 6A	Sep 21–Oct 16	Chad A. Russell	Full (33/24)

WELD-62 Welding Procedures in Shielded Metal Arc, Gas Metal Arc, and Flux Core Arc Welding of Carbon Pipe · 5 units

Course description

CRN	Meets	Dates	Instructor	Seats
39224	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:45am–4:45pm, 2 rooms All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:45–9:50am Agriculture Building 11 In-Person Laboratory Mon/Tue/Wed/Thu 10:00am–4:45pm Industrial Technology Build. 6A	Oct 19–Nov 20	Chad A. Russell	Full (34/24), 5 waitlisted
39225	In person In-Person Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:45am–4:45pm, 2 rooms All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:45–9:50am Agriculture Building 11 In-Person Laboratory Mon/Tue/Wed/Thu 10:00am–4:45pm Industrial Technology Build. 6A	Oct 19–Nov 20	Chad A. Russell	Full (34/24), 1 waitlisted

WELD-63 Fitting and Layout for the Pipe and Tube Industry · 3 units

Course description

CRN	Meets	Dates	Instructor	Seats
39226	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:45am–2:25pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:45–9:40am Agriculture Building 11 In-Person Laboratory Mon/Tue/Wed/Thu 9:50am–2:25pm Industrial Technology Build. 6A Plus online work	Nov 23–Dec 11	Chad A. Russell	Full (34/24), 5 waitlisted
39227	Hybrid In-Person Lecture, Online Lecture, In-Person Laboratory · Merced Campus Mon/Tue/Wed/Thu 7:45am–2:25pm, 2 rooms + online work All meeting times In-Person Lecture Mon/Tue/Wed/Thu 7:45–9:40am Agriculture Building 11 In-Person Laboratory Mon/Tue/Wed/Thu 9:50am–2:25pm Industrial Technology Build. 6A Plus online work	Nov 23–Dec 11	Chad A. Russell	Full (34/24)

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