MIT TechTV Machine Shop Videos

From the MachinistBlog.com

 

Machine Shop 1 – Machining Skills for Prototype Development (Length: 40:32)

• Basic tour of the machine shop
• Layout techniques (including transferring hole locations)
• Basic tools: drill press, band saw, belt sander and grinder
• Locating and drilling holes (includes using a center finder and deburring)
• Tapping holes (including using a tap guide)

Machine Shop 2 – Machining Skills for Prototype Development (57:33)

• Drilling holes
• Special drills for plastics and hard or abrasive materials
• Drill press limitations
• Bandsaw
• Suitable speeds, feeds and materials
• Bandsaw setup
• Using the drill press vise

Machine Shop 3 – Machining Skills for Prototype Development (30:02)

• Good practice – clean up
• Small belt sander configurations
• Grinder operations and materials
• Deburring and buffing
• Finishing techniques

Machine Shop 4 – Milling Machine 1 (50:33)

• Parts and controls of a Bridgeport Mill
• Quill feed
• Axis handfeeds (11:20) backlash explanation (12:15)
• Gib locks (14:40)
• Power feed (18:33)
• Digital readouts (21:07)
• Milling machine set-up – squaring/tramming  the head square (22:37)
• Squaring the vise – adjusting the vise so the stationary jaw is parallel to the bed (32:33)
• Milling machine accessories and workholding techniques  (41:15)

Machine Shop 5 – Milling Machine 2 (1:03:33)

• Square and hex collet blocks – used to hold/clamp parts to machine features on 4 and 6 sides of a part respectively (1:02)
• V-blocks  (2:10)
• Hold-down clamps – used to hold large or irregularly shaped parts (3:40)
• Using angle blocks – used to hold materials to machine features not perpendicular on a part (6:15)
• Drill press vise – using a vise within a vise (8:29)
• Lathe chuck with vise  – can be used to hold parts in the milling machine (11:11)
• Double sided tape – can be used to securely hold a part without distortion (12:00)
• Squaring high aspect ratio parts  (16:02)
• Right angle attachment (23:04)
• Slitting saws – used to cut slots/slits/features in a part (33:21)
• Rotary table – used to machine circular parts, grooves, circles, and segments (41:16).  A dial indicator (43:20) or Coaxial indicator (47:25) can be used to square/center the table to the X & Y axes
• 5C collet indexer – used to hold collets and to position parts in up to 24 positions  (52:42)

Machine Shop 6 – Milling Machine 3 (42:36)

• Squaring a part  – machining a piece of metal so all of the surfaces are flat, perpendicular and milled to the nominal size (1:00). Also covers using a fly-cutter (4:50) and deburring (8:40)
• Squaring a plate (17:52)
• Using the edgefinder (32:00)
• Drilling holes with a mill (35:32)

Machine Shop 7 – Milling Machine 4 (23:07)

• Reaming holes  (1:00)
• Boring holes with a boring Head (3:04) – also covers using Plug Gages to measure hole sizes (8:54)
  
• Milling a slot (10:45)
• Milling a shoulder, conventional and climb milling (17:11)
• Cleaning the machine (21:05)