Video: Between Casting and Machining from Solid Is Extrusion

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

The Machined Direct Drive Pedal from DW Drums realized design improvements thanks to machining, then cost improvement as result of moving one step further.


Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

A theme for Modern Machine Shop this month has been machining from solid, or machining hogouts. The cover story of this month’s issue focuses of machining hogouts as an alternative to casting. Yet these are not the only two choices. As DW Drums’ Vice President of Manufacturing Rich Sikra explains in this video, the drum maker formerly manufactured drum pedals using cast components, but shifted to machining from solid because of the engineering changes this move allowed. Then, to reduce the amount of machining required, the company went to what Mr. Sikra sees as an in-between option: starting with extrusions to realize aluminum workpieces that are initially somewhat close to the intended shape.

Here is even more detail about working with extrusions.


  • Drilling Deep Holes On A VMC

    The recipe for best results is simple: Start with a rigid machine, add a high pressure through-the-spindle coolant system, then combine these with the right drill geometry plus the right speeds and feeds.

  • Four Types Of Five-Axis Machining Centers

    Different machines offer different approaches to rotary travel, and each design has its own strengths. Here's how they compare.

  • The Challenges of Machining Glass-Filled Plastics

    Plastics reinforced with glass present more machining variables to manage than conventional metals. This shop has developed a process to overcome those challenges and has become more adroit at short-run work along the way.