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Technology Grinding Technology

 

Dressing and Grinding Technology

 

For over 50 years, the ELB name has stood for productive and innovative grinding technology. A large number of important process variations were introduced and further developed by ELB. For that reason we are able to offer our customers the entire range of grinding technologies from universal standard applications up to highly productive special processes.

ELB standard grinding machines can be equipped to accommodate all common grinding technologies:

	Reciprocation Grinding
Utilizing reciprocation grinding, the work piece travels under the grinding wheel, which is fed down a few µm after each pass. This method represents the simplest form of surface grinding.
	Creep Feed Grinding
Creep feed grinding is also known as full cut grinding or deep grinding. In this case the grinding wheel is fed in in one or two steps to the full grinding depth with the grinding wheel travelling at relatively slow speed through the work piece. This procedure allows a high stock removal rate.
	Slot Grinding
For slot grinding the grinding wheel is lowered to the full grinding depth. The actual infeed is done per pass in the axial direction of the grinding wheel to control the slot width.
	Profile Grinding
Profile grinding comprises all those procedures in which profiles are produced instead of straight surfaces. Profiles can be generated by either reciprocation or creep feed grinding.
	Speed Stroke Grinding
Speed stroke grinding is a variation of reciprocation grinding, using higher table speeds. Speed stroke grinding allows increased productivity as high table speed and shorter overruns reduce the time where the grinding wheel is not engaged.

 

In addition to standard applications, ELB can also rely on a large number of proven cycles with which special grinding jobs have been solved in the past.

Dressing methods

The large variety of available dressing devices and technologies enables us to optimize the dressing process for any given task. Besides choosing the most suitable dressing device for the application, it is also important to use the correct dressing technology. Profiles can be dressed by using single point diamonds or radius tipped diamond discs so that by means of CNC interpolation between the vertical ( Y ) and the cross axis ( Z ) the form is dressed into the wheel. Another option to dress the form into the grinding wheel is by using a diamond profile roll which has the same profile as the workpiece. The dressing can take place prior to grinding or during the grinding process, with intermittent or continuous (CD–dressing) infeed. When making a decision about the grinding and the dressing process one must also take into consideration the required flexibility, productivity as well as the economy of the selected tools.